<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:f540db84-3583-423c-9616-5926848a17b9,g:09100558-cb83-46d6-9068-0a4559f0a43b-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.uei.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="ueic-20211231.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended" id="i9a7547510f414cbfb7a3b24df72f536c_CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_9b58a805-3cf8-48e6-b487-89edfd1ba9cd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_9b58a805-3cf8-48e6-b487-89edfd1ba9cd" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_f32e50e9-5984-4e75-8288-493333a39853" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_SharesOutstanding_f32e50e9-5984-4e75-8288-493333a39853" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_0597d324-be5e-4701-9627-018838ec0fef" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_StockholdersEquity_0597d324-be5e-4701-9627-018838ec0fef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_2aa57fa3-ca58-4a87-9a3b-6e133516a3f3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_NetIncomeLoss_2aa57fa3-ca58-4a87-9a3b-6e133516a3f3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_e4c2670f-466c-4f19-a1e2-efefb49aea88" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_e4c2670f-466c-4f19-a1e2-efefb49aea88" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxDueToSaleOfSubsidiary_36246228-4401-46f9-9566-28c2fbbd98be" xlink:href="ueic-20211231.xsd#ueic_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxDueToSaleOfSubsidiary"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_ueic_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxDueToSaleOfSubsidiary_36246228-4401-46f9-9566-28c2fbbd98be" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_4f612bf6-6fa0-4b1c-9d48-10aec30ba0a4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_4f612bf6-6fa0-4b1c-9d48-10aec30ba0a4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_f0c6d746-e101-4109-84c7-c2c397a607f3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_f0c6d746-e101-4109-84c7-c2c397a607f3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_3788040a-83be-4955-9621-5573b1a2c799" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_3788040a-83be-4955-9621-5573b1a2c799" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_908f9d57-9394-49e3-a6a4-a91250012c46" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_908f9d57-9394-49e3-a6a4-a91250012c46" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_6ecdcbb9-a434-4709-a4c9-9f11ecc7bf8d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_6ecdcbb9-a434-4709-a4c9-9f11ecc7bf8d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_f70947b9-d2e6-4dff-ac44-a0c8b471088e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_f70947b9-d2e6-4dff-ac44-a0c8b471088e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SharesIssuedToDirectorsShares_6fb33b33-d111-450c-8729-42d1e6645183" xlink:href="ueic-20211231.xsd#ueic_SharesIssuedToDirectorsShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_ueic_SharesIssuedToDirectorsShares_6fb33b33-d111-450c-8729-42d1e6645183" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SharesIssuedToDirectorsValue_108dbbd3-2c14-4de7-80c8-61d70f817fb7" xlink:href="ueic-20211231.xsd#ueic_SharesIssuedToDirectorsValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_ueic_SharesIssuedToDirectorsValue_108dbbd3-2c14-4de7-80c8-61d70f817fb7" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_51769af2-d08b-462b-9279-377ad387c64a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_51769af2-d08b-462b-9279-377ad387c64a" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_109a79e2-2835-41f6-ba69-2527aef4634e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0f33fdd-f51f-4ebf-ad6c-8721346ab36b" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_109a79e2-2835-41f6-ba69-2527aef4634e" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_b2e619b6-2181-457c-af7b-395ae48527a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_70f91f85-f959-47e6-a331-dce762893766" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_03945cf4-67ff-4ff4-bf68-ada40f5b5441" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_9b58a805-3cf8-48e6-b487-89edfd1ba9cd" xlink:to="loc_us-gaap_StatementTable_03945cf4-67ff-4ff4-bf68-ada40f5b5441" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_a71f88fc-ca4d-40b4-9008-cb3043d66ac6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_03945cf4-67ff-4ff4-bf68-ada40f5b5441" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_a71f88fc-ca4d-40b4-9008-cb3043d66ac6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a71f88fc-ca4d-40b4-9008-cb3043d66ac6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a71f88fc-ca4d-40b4-9008-cb3043d66ac6" xlink:to="loc_us-gaap_EquityComponentDomain_a71f88fc-ca4d-40b4-9008-cb3043d66ac6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_cf8d3ed7-aa65-45af-a253-2dcc6f686165" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a71f88fc-ca4d-40b4-9008-cb3043d66ac6" xlink:to="loc_us-gaap_EquityComponentDomain_cf8d3ed7-aa65-45af-a253-2dcc6f686165" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_0fe713e1-4684-4d34-9fd4-e45ed286c7ee" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_cf8d3ed7-aa65-45af-a253-2dcc6f686165" xlink:to="loc_us-gaap_CommonStockMember_0fe713e1-4684-4d34-9fd4-e45ed286c7ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockMember_90e04340-5230-4a99-804f-402298b7dd50" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_cf8d3ed7-aa65-45af-a253-2dcc6f686165" xlink:to="loc_us-gaap_TreasuryStockMember_90e04340-5230-4a99-804f-402298b7dd50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_f3e193cd-5565-4ad9-8ad5-6c0e7c274839" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_cf8d3ed7-aa65-45af-a253-2dcc6f686165" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_f3e193cd-5565-4ad9-8ad5-6c0e7c274839" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_a6b8e979-a00b-4eba-a57b-e5138a6fa366" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_cf8d3ed7-aa65-45af-a253-2dcc6f686165" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_a6b8e979-a00b-4eba-a57b-e5138a6fa366" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_bf034da7-e861-4abd-89c4-9d356d4ab80b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_cf8d3ed7-aa65-45af-a253-2dcc6f686165" xlink:to="loc_us-gaap_RetainedEarningsMember_bf034da7-e861-4abd-89c4-9d356d4ab80b" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="ueic-20211231.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended" id="ib090b13857d14654b8b087311f9834f6_CONSOLIDATEDSTATEMENTSOFCASHFLOWS">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_b5c045cd-7e98-4dc0-8935-ab5ab292629d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_b5c045cd-7e98-4dc0-8935-ab5ab292629d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_8ae00c59-b90d-4965-9afc-cfd3830f99f2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_b5c045cd-7e98-4dc0-8935-ab5ab292629d" xlink:to="loc_us-gaap_NetIncomeLoss_8ae00c59-b90d-4965-9afc-cfd3830f99f2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_b5c045cd-7e98-4dc0-8935-ab5ab292629d" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_35a423a8-5364-47c6-b5af-f258d21a9648" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_35a423a8-5364-47c6-b5af-f258d21a9648" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_560912dd-c47e-427c-97d6-171ee56125e0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_560912dd-c47e-427c-97d6-171ee56125e0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_30ff56df-eb58-4e2a-becb-1d5e2f4d1d8f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_30ff56df-eb58-4e2a-becb-1d5e2f4d1d8f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SharesIssuedForEmployeeBenefitPlan_7acbde65-8cd1-407e-a492-58734209eaf4" xlink:href="ueic-20211231.xsd#ueic_SharesIssuedForEmployeeBenefitPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_ueic_SharesIssuedForEmployeeBenefitPlan_7acbde65-8cd1-407e-a492-58734209eaf4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_5c26a455-d38a-46c2-bc43-1e53f0888983" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_us-gaap_ShareBasedCompensation_5c26a455-d38a-46c2-bc43-1e53f0888983" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_b1750535-9bfe-4c99-b4e7-31896d11fafe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_b1750535-9bfe-4c99-b4e7-31896d11fafe" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_c815536e-be5f-47ce-a8b4-fff423100dd4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_c815536e-be5f-47ce-a8b4-fff423100dd4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_GainLossOnDispositionOfBusinessNetOfCashTransferred_91c9e0a4-713c-409d-b2a2-5b7974e057b5" xlink:href="ueic-20211231.xsd#ueic_GainLossOnDispositionOfBusinessNetOfCashTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_ueic_GainLossOnDispositionOfBusinessNetOfCashTransferred_91c9e0a4-713c-409d-b2a2-5b7974e057b5" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AccruedSocialInsuranceAdjustment_fd4560b9-9f86-4841-a45c-2d01343dfb54" xlink:href="ueic-20211231.xsd#ueic_AccruedSocialInsuranceAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_ueic_AccruedSocialInsuranceAdjustment_fd4560b9-9f86-4841-a45c-2d01343dfb54" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_GainLossOnDispositionOfBusinessExcludingSubsidiary_cfd67522-bb62-4ae0-8073-673d1b80dcf4" xlink:href="ueic-20211231.xsd#ueic_GainLossOnDispositionOfBusinessExcludingSubsidiary"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_ueic_GainLossOnDispositionOfBusinessExcludingSubsidiary_cfd67522-bb62-4ae0-8073-673d1b80dcf4" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_329fee30-910d-4cd3-959c-2a249a564141" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_3b1cffd0-54fb-4635-8cd0-c90f7be2da65" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_329fee30-910d-4cd3-959c-2a249a564141" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_c0ae58e5-1b9f-47d5-b611-84084817ea3f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_329fee30-910d-4cd3-959c-2a249a564141" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_c0ae58e5-1b9f-47d5-b611-84084817ea3f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_c65cc80d-c399-4839-b246-bafd6d0e1ba7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_329fee30-910d-4cd3-959c-2a249a564141" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_c65cc80d-c399-4839-b246-bafd6d0e1ba7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_344a8ba1-a599-40a6-b9d6-88508da32611" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_329fee30-910d-4cd3-959c-2a249a564141" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_344a8ba1-a599-40a6-b9d6-88508da32611" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_57f81a05-2d59-4219-881d-820afe83ad13" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_329fee30-910d-4cd3-959c-2a249a564141" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_57f81a05-2d59-4219-881d-820afe83ad13" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_8c93d676-6679-433c-a033-bbb7d0741875" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_329fee30-910d-4cd3-959c-2a249a564141" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_8c93d676-6679-433c-a033-bbb7d0741875" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5ae480d5-857a-4cde-95ac-a0667ed0be5e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_b5c045cd-7e98-4dc0-8935-ab5ab292629d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5ae480d5-857a-4cde-95ac-a0667ed0be5e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ef4ee961-eba2-47bf-9da5-7ca8e309c123" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ef4ee961-eba2-47bf-9da5-7ca8e309c123" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_ae884bf1-5203-488f-81e3-767ea87ececf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ef4ee961-eba2-47bf-9da5-7ca8e309c123" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_ae884bf1-5203-488f-81e3-767ea87ececf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireIntangibleAssets_b737d494-907a-4753-90e5-66100f9dd345" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ef4ee961-eba2-47bf-9da5-7ca8e309c123" xlink:to="loc_us-gaap_PaymentsToAcquireIntangibleAssets_b737d494-907a-4753-90e5-66100f9dd345" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRemovalCosts_9a018331-b754-4dc0-aa22-ef402ed9c750" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRemovalCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ef4ee961-eba2-47bf-9da5-7ca8e309c123" xlink:to="loc_us-gaap_PaymentsForRemovalCosts_9a018331-b754-4dc0-aa22-ef402ed9c750" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6a56861f-d5a9-4829-87d9-e1380defa080" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_ef4ee961-eba2-47bf-9da5-7ca8e309c123" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_6a56861f-d5a9-4829-87d9-e1380defa080" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a72a772f-3399-42f1-96f5-6472bbdf2b3e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a72a772f-3399-42f1-96f5-6472bbdf2b3e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromShortTermDebt_f6d3c20c-3607-4fed-b34f-04e49f4e2816" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromShortTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a72a772f-3399-42f1-96f5-6472bbdf2b3e" xlink:to="loc_us-gaap_ProceedsFromShortTermDebt_f6d3c20c-3607-4fed-b34f-04e49f4e2816" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfShortTermDebt_ba2cc060-49b5-4dad-9186-876a00296431" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfShortTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a72a772f-3399-42f1-96f5-6472bbdf2b3e" xlink:to="loc_us-gaap_RepaymentsOfShortTermDebt_ba2cc060-49b5-4dad-9186-876a00296431" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ProceedsFromStockOptionsExercisedIncludingValueOfSharesWithheldInLieuOfCash_f4a5ca50-33b4-49f1-b83d-3a8c9503cdaa" xlink:href="ueic-20211231.xsd#ueic_ProceedsFromStockOptionsExercisedIncludingValueOfSharesWithheldInLieuOfCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a72a772f-3399-42f1-96f5-6472bbdf2b3e" xlink:to="loc_ueic_ProceedsFromStockOptionsExercisedIncludingValueOfSharesWithheldInLieuOfCash_f4a5ca50-33b4-49f1-b83d-3a8c9503cdaa" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_d48657af-1437-4635-8cd1-55d7a99f319f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a72a772f-3399-42f1-96f5-6472bbdf2b3e" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_d48657af-1437-4635-8cd1-55d7a99f319f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_a91d6f5b-5444-487d-b344-b9b362de293a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a72a772f-3399-42f1-96f5-6472bbdf2b3e" xlink:to="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_a91d6f5b-5444-487d-b344-b9b362de293a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_0f055d14-605c-4685-8f63-99543868be04" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a72a772f-3399-42f1-96f5-6472bbdf2b3e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_0f055d14-605c-4685-8f63-99543868be04" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_344e3803-59d1-4b1a-9431-370e74f8528a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_344e3803-59d1-4b1a-9431-370e74f8528a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_35a11dc2-0110-446b-853e-d1760e7b2726" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_35a11dc2-0110-446b-853e-d1760e7b2726" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_c69bbe4f-ff7a-4677-a95b-2e8dbf4f471e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_c69bbe4f-ff7a-4677-a95b-2e8dbf4f471e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_04ae1e98-7440-40b4-a1b9-cf622c6b8910" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_1b59d9bd-5820-42f9-8712-c32a7fec93cf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_1b59d9bd-5820-42f9-8712-c32a7fec93cf" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaid_bb9aaefa-4dbe-4d74-abb2-b88d71bbe3d5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxesPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_1b59d9bd-5820-42f9-8712-c32a7fec93cf" xlink:to="loc_us-gaap_IncomeTaxesPaid_bb9aaefa-4dbe-4d74-abb2-b88d71bbe3d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_051a1721-4833-4803-98b9-9afbce786547" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_1b59d9bd-5820-42f9-8712-c32a7fec93cf" xlink:to="loc_us-gaap_InterestPaidNet_051a1721-4833-4803-98b9-9afbce786547" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_c6b170ac-f2b8-4f45-97c1-c53aa9643798" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_4ebb20bf-2728-40ae-9900-fe7538603220" xlink:to="loc_us-gaap_StatementTable_c6b170ac-f2b8-4f45-97c1-c53aa9643798" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_29dbf410-ca98-4c7c-94dc-1f97bab0f382" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_c6b170ac-f2b8-4f45-97c1-c53aa9643798" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_29dbf410-ca98-4c7c-94dc-1f97bab0f382" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_29dbf410-ca98-4c7c-94dc-1f97bab0f382_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_29dbf410-ca98-4c7c-94dc-1f97bab0f382" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_29dbf410-ca98-4c7c-94dc-1f97bab0f382_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_6e02d543-5759-43c3-b475-7a96d79653c8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_29dbf410-ca98-4c7c-94dc-1f97bab0f382" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_6e02d543-5759-43c3-b475-7a96d79653c8" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#SummaryofSignificantAccountingPoliciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended" id="i3044b940769342f9b3ebf91c7e368144_SummaryofSignificantAccountingPoliciesNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:href="ueic-20211231.xsd#ueic_AccountingPoliciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ContractWithCustomerLiabilityDiscountsAndRebatesAccrued_9f196d40-d21c-4a56-8132-2109f0290765" xlink:href="ueic-20211231.xsd#ueic_ContractWithCustomerLiabilityDiscountsAndRebatesAccrued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_ueic_ContractWithCustomerLiabilityDiscountsAndRebatesAccrued_9f196d40-d21c-4a56-8132-2109f0290765" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingExpense_de9f10d9-5ebb-4817-a967-9705c0beb113" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdvertisingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_us-gaap_AdvertisingExpense_de9f10d9-5ebb-4817-a967-9705c0beb113" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_8732cb95-25f2-41a9-853e-25d8f59803e6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_8732cb95-25f2-41a9-853e-25d8f59803e6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_5e0c850b-a650-4af4-af15-d40b688d43d9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_5e0c850b-a650-4af4-af15-d40b688d43d9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_d4575a9b-c856-4ad0-9a06-b9e2b6a3dfbd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_d4575a9b-c856-4ad0-9a06-b9e2b6a3dfbd" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_ef06349e-705e-40fc-ab8f-f89e9d908e5a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_ef06349e-705e-40fc-ab8f-f89e9d908e5a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_bcb3c0de-9323-41d2-9612-a76d212aa0ee" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_bcb3c0de-9323-41d2-9612-a76d212aa0ee" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_LesseeOperatingLeaseNumberOfOptionsToExtend_35fe1523-f9d0-452e-908a-2cafad1c474b" xlink:href="ueic-20211231.xsd#ueic_LesseeOperatingLeaseNumberOfOptionsToExtend"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_ueic_LesseeOperatingLeaseNumberOfOptionsToExtend_35fe1523-f9d0-452e-908a-2cafad1c474b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_c5c48796-e5a5-4474-bd9d-fcf73bf4b734" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_c5c48796-e5a5-4474-bd9d-fcf73bf4b734" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MaximumRemainingMaturityOfForeignCurrencyDerivatives1_7c4f3f61-387c-467d-a5ac-84ff082a9e53" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MaximumRemainingMaturityOfForeignCurrencyDerivatives1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_us-gaap_MaximumRemainingMaturityOfForeignCurrencyDerivatives1_7c4f3f61-387c-467d-a5ac-84ff082a9e53" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AccountingPoliciesTable_a54d5009-bc1a-4856-a324-f509664344c7" xlink:href="ueic-20211231.xsd#ueic_AccountingPoliciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ueic_AccountingPoliciesLineItems_146889ca-4865-4c19-90a1-e07faddcadb1" xlink:to="loc_ueic_AccountingPoliciesTable_a54d5009-bc1a-4856-a324-f509664344c7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_8a358240-f39d-49ac-a052-9d556f2cb689" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_AccountingPoliciesTable_a54d5009-bc1a-4856-a324-f509664344c7" xlink:to="loc_srt_RangeAxis_8a358240-f39d-49ac-a052-9d556f2cb689" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_8a358240-f39d-49ac-a052-9d556f2cb689_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_8a358240-f39d-49ac-a052-9d556f2cb689" xlink:to="loc_srt_RangeMember_8a358240-f39d-49ac-a052-9d556f2cb689_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_ee046c33-dba9-4316-b830-603e7187b493" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_8a358240-f39d-49ac-a052-9d556f2cb689" xlink:to="loc_srt_RangeMember_ee046c33-dba9-4316-b830-603e7187b493" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_af3a8a54-d273-4a4c-b50a-ff783f046d41" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_ee046c33-dba9-4316-b830-603e7187b493" xlink:to="loc_srt_MinimumMember_af3a8a54-d273-4a4c-b50a-ff783f046d41" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_6928f2e3-05ca-4b75-a19b-019f93f0fdb3" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_ee046c33-dba9-4316-b830-603e7187b493" xlink:to="loc_srt_MaximumMember_6928f2e3-05ca-4b75-a19b-019f93f0fdb3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_7c449811-353e-4581-a68d-be803f71466f" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_AccountingPoliciesTable_a54d5009-bc1a-4856-a324-f509664344c7" xlink:to="loc_srt_ProductOrServiceAxis_7c449811-353e-4581-a68d-be803f71466f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_7c449811-353e-4581-a68d-be803f71466f_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_7c449811-353e-4581-a68d-be803f71466f" xlink:to="loc_srt_ProductsAndServicesDomain_7c449811-353e-4581-a68d-be803f71466f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_dceeae9b-3583-403d-969c-66686a93e44a" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_7c449811-353e-4581-a68d-be803f71466f" xlink:to="loc_srt_ProductsAndServicesDomain_dceeae9b-3583-403d-969c-66686a93e44a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShippingAndHandlingMember_010bb7f3-a018-42fc-b6b6-d82b9b56908d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShippingAndHandlingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_dceeae9b-3583-403d-969c-66686a93e44a" xlink:to="loc_us-gaap_ShippingAndHandlingMember_010bb7f3-a018-42fc-b6b6-d82b9b56908d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_44b49e30-0e33-4abd-a218-42f8b851b099" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_AccountingPoliciesTable_a54d5009-bc1a-4856-a324-f509664344c7" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_44b49e30-0e33-4abd-a218-42f8b851b099" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_44b49e30-0e33-4abd-a218-42f8b851b099_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_44b49e30-0e33-4abd-a218-42f8b851b099" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_44b49e30-0e33-4abd-a218-42f8b851b099_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_b7288e11-9203-4db3-985a-926942d8e554" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_44b49e30-0e33-4abd-a218-42f8b851b099" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_b7288e11-9203-4db3-985a-926942d8e554" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedDividendRateMember_5b266296-0b64-4a6e-a8f1-4e63b553b625" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputExpectedDividendRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_b7288e11-9203-4db3-985a-926942d8e554" xlink:to="loc_us-gaap_MeasurementInputExpectedDividendRateMember_5b266296-0b64-4a6e-a8f1-4e63b553b625" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_57b424f5-10c0-4e25-bc25-5016d1da568e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_AccountingPoliciesTable_a54d5009-bc1a-4856-a324-f509664344c7" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_57b424f5-10c0-4e25-bc25-5016d1da568e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_57b424f5-10c0-4e25-bc25-5016d1da568e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_57b424f5-10c0-4e25-bc25-5016d1da568e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_57b424f5-10c0-4e25-bc25-5016d1da568e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_84546993-33a1-447b-a266-51a46fb10b19" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_57b424f5-10c0-4e25-bc25-5016d1da568e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_84546993-33a1-447b-a266-51a46fb10b19" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_7160ae11-4a36-4b8c-a21f-fc3477676c5c" xlink:href="ueic-20211231.xsd#ueic_CommonStockPurchaseWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_84546993-33a1-447b-a266-51a46fb10b19" xlink:to="loc_ueic_CommonStockPurchaseWarrantMember_7160ae11-4a36-4b8c-a21f-fc3477676c5c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_938fd7c5-9678-485d-8544-f3c490f5ad53" xlink:href="ueic-20211231.xsd#ueic_CommonStockPurchaseWarrantMember"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/SummaryofSignificantAccountingPoliciesEstimatedUsefulLivesofPropertyPlantandEquipmentDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#SummaryofSignificantAccountingPoliciesEstimatedUsefulLivesofPropertyPlantandEquipmentDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/SummaryofSignificantAccountingPoliciesEstimatedUsefulLivesofPropertyPlantandEquipmentDetails" xlink:type="extended" id="i81c07d5f3d7d4f44b12b35cef50ba93c_SummaryofSignificantAccountingPoliciesEstimatedUsefulLivesofPropertyPlantandEquipmentDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_e0b6c920-c79f-4f32-951b-7463e0115b26" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_61be4ba0-0387-4802-b429-4f4e8b24bdaf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_e0b6c920-c79f-4f32-951b-7463e0115b26" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_61be4ba0-0387-4802-b429-4f4e8b24bdaf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_533d8312-96d9-4782-80ce-a3b6516f940f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_e0b6c920-c79f-4f32-951b-7463e0115b26" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_533d8312-96d9-4782-80ce-a3b6516f940f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_69e8c544-77d5-498b-8c69-5e4fa9cbbe82" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_533d8312-96d9-4782-80ce-a3b6516f940f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_69e8c544-77d5-498b-8c69-5e4fa9cbbe82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_69e8c544-77d5-498b-8c69-5e4fa9cbbe82_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_69e8c544-77d5-498b-8c69-5e4fa9cbbe82" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_69e8c544-77d5-498b-8c69-5e4fa9cbbe82_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_35ee116a-1612-427a-a0b8-682b4abd64bc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_69e8c544-77d5-498b-8c69-5e4fa9cbbe82" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_35ee116a-1612-427a-a0b8-682b4abd64bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_1f3c73c4-455a-45be-8557-1fd33de03882" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_35ee116a-1612-427a-a0b8-682b4abd64bc" xlink:to="loc_us-gaap_BuildingMember_1f3c73c4-455a-45be-8557-1fd33de03882" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ToolsDiesAndMoldsMember_2826f87d-948b-464d-b24e-324b1b048b41" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ToolsDiesAndMoldsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_35ee116a-1612-427a-a0b8-682b4abd64bc" xlink:to="loc_us-gaap_ToolsDiesAndMoldsMember_2826f87d-948b-464d-b24e-324b1b048b41" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_2bbc21fe-d19a-466e-88db-7f2dc90e69f6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_35ee116a-1612-427a-a0b8-682b4abd64bc" xlink:to="loc_us-gaap_ComputerEquipmentMember_2bbc21fe-d19a-466e-88db-7f2dc90e69f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_0d58b625-d3ff-4447-996d-99fa0a272a35" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_35ee116a-1612-427a-a0b8-682b4abd64bc" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_0d58b625-d3ff-4447-996d-99fa0a272a35" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_ba7cf0aa-7a24-4b44-b43e-aa3ee2a2b2a3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_35ee116a-1612-427a-a0b8-682b4abd64bc" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_ba7cf0aa-7a24-4b44-b43e-aa3ee2a2b2a3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_LeaseholdandBuildingImprovementsMember_aa52f551-b859-4cbe-9b4a-627d887f9a8e" xlink:href="ueic-20211231.xsd#ueic_LeaseholdandBuildingImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_35ee116a-1612-427a-a0b8-682b4abd64bc" xlink:to="loc_ueic_LeaseholdandBuildingImprovementsMember_aa52f551-b859-4cbe-9b4a-627d887f9a8e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_65403bcf-ad3e-4703-a7a0-b3f990dc4606" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_533d8312-96d9-4782-80ce-a3b6516f940f" xlink:to="loc_srt_RangeAxis_65403bcf-ad3e-4703-a7a0-b3f990dc4606" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_65403bcf-ad3e-4703-a7a0-b3f990dc4606_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_65403bcf-ad3e-4703-a7a0-b3f990dc4606" xlink:to="loc_srt_RangeMember_65403bcf-ad3e-4703-a7a0-b3f990dc4606_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_b27ef44b-fc77-48f0-9f55-129a0c7ece58" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_65403bcf-ad3e-4703-a7a0-b3f990dc4606" xlink:to="loc_srt_RangeMember_b27ef44b-fc77-48f0-9f55-129a0c7ece58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_3712a32b-eae5-4a81-9b28-6977df851d00" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_b27ef44b-fc77-48f0-9f55-129a0c7ece58" xlink:to="loc_srt_MinimumMember_3712a32b-eae5-4a81-9b28-6977df851d00" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_f0a5acae-d88a-41c4-9d96-787ab499cb6f" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_b27ef44b-fc77-48f0-9f55-129a0c7ece58" xlink:to="loc_srt_MaximumMember_f0a5acae-d88a-41c4-9d96-787ab499cb6f" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/CashandCashEquivalentsCashandCashEquivalentsbyGeographicRegionDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#CashandCashEquivalentsCashandCashEquivalentsbyGeographicRegionDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/CashandCashEquivalentsCashandCashEquivalentsbyGeographicRegionDetails" xlink:type="extended" id="ia6f56b1c6e804283b7259c9290b9ab8f_CashandCashEquivalentsCashandCashEquivalentsbyGeographicRegionDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsLineItems_67b93dc0-4a50-48b2-af8f-0e3c0d67b13d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_c8624871-8da0-4c85-9ab6-e7f5de373340" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_67b93dc0-4a50-48b2-af8f-0e3c0d67b13d" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_c8624871-8da0-4c85-9ab6-e7f5de373340" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_3348178a-cac1-486a-b424-2e73ce8adadc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_67b93dc0-4a50-48b2-af8f-0e3c0d67b13d" xlink:to="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_3348178a-cac1-486a-b424-2e73ce8adadc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_bb1df869-788d-4563-ad5c-7ac60c19f06e" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_3348178a-cac1-486a-b424-2e73ce8adadc" xlink:to="loc_srt_StatementGeographicalAxis_bb1df869-788d-4563-ad5c-7ac60c19f06e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_bb1df869-788d-4563-ad5c-7ac60c19f06e_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_bb1df869-788d-4563-ad5c-7ac60c19f06e" xlink:to="loc_srt_SegmentGeographicalDomain_bb1df869-788d-4563-ad5c-7ac60c19f06e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_bc1b44ee-ed69-48e8-86d0-90e736310b1f" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_bb1df869-788d-4563-ad5c-7ac60c19f06e" xlink:to="loc_srt_SegmentGeographicalDomain_bc1b44ee-ed69-48e8-86d0-90e736310b1f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_609220dc-410d-4def-a80f-32635929d265" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bc1b44ee-ed69-48e8-86d0-90e736310b1f" xlink:to="loc_country_US_609220dc-410d-4def-a80f-32635929d265" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CN_13b307c7-60e8-4b11-870c-78347c8fe16b" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_CN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bc1b44ee-ed69-48e8-86d0-90e736310b1f" xlink:to="loc_country_CN_13b307c7-60e8-4b11-870c-78347c8fe16b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AsiaExcludingPeoplesRepublicOfChinaMember_f3e00c14-9834-4966-a93c-a84db5c0857b" xlink:href="ueic-20211231.xsd#ueic_AsiaExcludingPeoplesRepublicOfChinaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bc1b44ee-ed69-48e8-86d0-90e736310b1f" xlink:to="loc_ueic_AsiaExcludingPeoplesRepublicOfChinaMember_f3e00c14-9834-4966-a93c-a84db5c0857b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember_fc0ba589-883f-4c03-b705-e4b34eff58a7" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_EuropeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bc1b44ee-ed69-48e8-86d0-90e736310b1f" xlink:to="loc_srt_EuropeMember_fc0ba589-883f-4c03-b705-e4b34eff58a7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SouthAmericaMember_0f30100e-3d8c-46a3-9da3-b36a83c97779" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SouthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bc1b44ee-ed69-48e8-86d0-90e736310b1f" xlink:to="loc_srt_SouthAmericaMember_0f30100e-3d8c-46a3-9da3-b36a83c97779" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/RevenueandAccountsReceivableNetPatternofRevenueRecognitionDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#RevenueandAccountsReceivableNetPatternofRevenueRecognitionDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/RevenueandAccountsReceivableNetPatternofRevenueRecognitionDetails" xlink:type="extended" id="icd1018ba75204d868f55d071bd138480_RevenueandAccountsReceivableNetPatternofRevenueRecognitionDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_6bc9fd23-ae63-49fa-b35b-b0a2906e1263" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_93d61a24-b7b5-4e92-87bf-b6f03a1261bb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6bc9fd23-ae63-49fa-b35b-b0a2906e1263" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_93d61a24-b7b5-4e92-87bf-b6f03a1261bb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_dba4ee95-cbf3-4ff7-aac6-0117e850f450" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_6bc9fd23-ae63-49fa-b35b-b0a2906e1263" xlink:to="loc_us-gaap_StatementTable_dba4ee95-cbf3-4ff7-aac6-0117e850f450" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_3432578c-d098-4122-a7ae-e640bef17bd9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_dba4ee95-cbf3-4ff7-aac6-0117e850f450" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_3432578c-d098-4122-a7ae-e640bef17bd9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_3432578c-d098-4122-a7ae-e640bef17bd9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_3432578c-d098-4122-a7ae-e640bef17bd9" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_3432578c-d098-4122-a7ae-e640bef17bd9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_009cafaa-73cf-4bb4-b1b8-1a008a79d0c3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_3432578c-d098-4122-a7ae-e640bef17bd9" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_009cafaa-73cf-4bb4-b1b8-1a008a79d0c3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredAtPointInTimeMember_6e644792-5f35-46d7-853d-607b681f253c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TransferredAtPointInTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_009cafaa-73cf-4bb4-b1b8-1a008a79d0c3" xlink:to="loc_us-gaap_TransferredAtPointInTimeMember_6e644792-5f35-46d7-853d-607b681f253c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredOverTimeMember_5b3b17d0-bbc0-4775-aa05-9dfd294797c9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TransferredOverTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_009cafaa-73cf-4bb4-b1b8-1a008a79d0c3" xlink:to="loc_us-gaap_TransferredOverTimeMember_5b3b17d0-bbc0-4775-aa05-9dfd294797c9" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/RevenueandAccountsReceivableNetRevenuefromExternalCustomersbyGeographicAreasDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#RevenueandAccountsReceivableNetRevenuefromExternalCustomersbyGeographicAreasDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/RevenueandAccountsReceivableNetRevenuefromExternalCustomersbyGeographicAreasDetails" xlink:type="extended" id="i8a4f79cfaec34075986ccd0ad45f7015_RevenueandAccountsReceivableNetRevenuefromExternalCustomersbyGeographicAreasDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_4b0f2896-0974-44e1-bb47-2066493191da" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_5e5046f3-5189-4864-af8f-35e910279698" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4b0f2896-0974-44e1-bb47-2066493191da" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_5e5046f3-5189-4864-af8f-35e910279698" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_cda70711-60b9-4c4c-b1f7-ac72f037c18b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_4b0f2896-0974-44e1-bb47-2066493191da" xlink:to="loc_us-gaap_StatementTable_cda70711-60b9-4c4c-b1f7-ac72f037c18b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_8c699af3-3338-4cb7-8c0b-6c5deb40ef51" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_cda70711-60b9-4c4c-b1f7-ac72f037c18b" xlink:to="loc_srt_StatementGeographicalAxis_8c699af3-3338-4cb7-8c0b-6c5deb40ef51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_8c699af3-3338-4cb7-8c0b-6c5deb40ef51_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_8c699af3-3338-4cb7-8c0b-6c5deb40ef51" xlink:to="loc_srt_SegmentGeographicalDomain_8c699af3-3338-4cb7-8c0b-6c5deb40ef51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_7c1f44f9-4e98-4fd8-a3c6-7b8590dcf3e5" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_8c699af3-3338-4cb7-8c0b-6c5deb40ef51" xlink:to="loc_srt_SegmentGeographicalDomain_7c1f44f9-4e98-4fd8-a3c6-7b8590dcf3e5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_cab87006-5695-45e5-a656-1c030950170b" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7c1f44f9-4e98-4fd8-a3c6-7b8590dcf3e5" xlink:to="loc_country_US_cab87006-5695-45e5-a656-1c030950170b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AsiaExcludingPeoplesRepublicOfChinaMember_bf3b8427-2d11-4617-8752-87dd049eb283" xlink:href="ueic-20211231.xsd#ueic_AsiaExcludingPeoplesRepublicOfChinaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7c1f44f9-4e98-4fd8-a3c6-7b8590dcf3e5" xlink:to="loc_ueic_AsiaExcludingPeoplesRepublicOfChinaMember_bf3b8427-2d11-4617-8752-87dd049eb283" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember_743f6e2d-54e6-4502-8b77-cbb8a32f8c29" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_EuropeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7c1f44f9-4e98-4fd8-a3c6-7b8590dcf3e5" xlink:to="loc_srt_EuropeMember_743f6e2d-54e6-4502-8b77-cbb8a32f8c29" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CN_1214f4a2-e831-42f7-ac10-38544e6f37bd" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_CN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7c1f44f9-4e98-4fd8-a3c6-7b8590dcf3e5" xlink:to="loc_country_CN_1214f4a2-e831-42f7-ac10-38544e6f37bd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LatinAmericaMember_a66d3526-e4b2-465d-8321-e3842da2eae2" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_LatinAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7c1f44f9-4e98-4fd8-a3c6-7b8590dcf3e5" xlink:to="loc_srt_LatinAmericaMember_a66d3526-e4b2-465d-8321-e3842da2eae2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AllOtherCountriesMember_09f32e1b-98a3-453c-b5f0-e8c6ce1c87ba" xlink:href="ueic-20211231.xsd#ueic_AllOtherCountriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7c1f44f9-4e98-4fd8-a3c6-7b8590dcf3e5" xlink:to="loc_ueic_AllOtherCountriesMember_09f32e1b-98a3-453c-b5f0-e8c6ce1c87ba" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/RevenueandAccountsReceivableNetNetSalestoSignificantCustomersDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#RevenueandAccountsReceivableNetNetSalestoSignificantCustomersDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/RevenueandAccountsReceivableNetNetSalestoSignificantCustomersDetails" xlink:type="extended" id="i2cac8526749c433fa9fbd6464cf16883_RevenueandAccountsReceivableNetNetSalestoSignificantCustomersDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_66e38e19-a1d4-49f1-8cef-a1cf373aec64" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_96338086-7ad7-4fb7-8c7b-992fbd3c5a30" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_66e38e19-a1d4-49f1-8cef-a1cf373aec64" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_96338086-7ad7-4fb7-8c7b-992fbd3c5a30" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_cf8e5e79-c179-498d-8d95-871667dbd9ce" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_66e38e19-a1d4-49f1-8cef-a1cf373aec64" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_cf8e5e79-c179-498d-8d95-871667dbd9ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_1f932d6b-bb16-490c-a9d6-e71a43c30eb3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_66e38e19-a1d4-49f1-8cef-a1cf373aec64" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_1f932d6b-bb16-490c-a9d6-e71a43c30eb3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_ddc61a7e-2c34-49f1-a207-c28384b94e79" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_1f932d6b-bb16-490c-a9d6-e71a43c30eb3" xlink:to="loc_srt_MajorCustomersAxis_ddc61a7e-2c34-49f1-a207-c28384b94e79" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_ddc61a7e-2c34-49f1-a207-c28384b94e79_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_ddc61a7e-2c34-49f1-a207-c28384b94e79" xlink:to="loc_srt_NameOfMajorCustomerDomain_ddc61a7e-2c34-49f1-a207-c28384b94e79_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_92371155-7b98-42b1-a0f7-eb0c2de911f0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_ddc61a7e-2c34-49f1-a207-c28384b94e79" xlink:to="loc_srt_NameOfMajorCustomerDomain_92371155-7b98-42b1-a0f7-eb0c2de911f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ComcastCorporationMember_1850fc49-2adc-427b-b425-db7a52340b75" xlink:href="ueic-20211231.xsd#ueic_ComcastCorporationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_92371155-7b98-42b1-a0f7-eb0c2de911f0" xlink:to="loc_ueic_ComcastCorporationMember_1850fc49-2adc-427b-b425-db7a52340b75" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_DaikinIndustriesLtd.Member_d84275cd-546a-4ce0-a4d9-165cea1a094c" xlink:href="ueic-20211231.xsd#ueic_DaikinIndustriesLtd.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_92371155-7b98-42b1-a0f7-eb0c2de911f0" xlink:to="loc_ueic_DaikinIndustriesLtd.Member_d84275cd-546a-4ce0-a4d9-165cea1a094c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_a38a7893-cebd-4b38-be10-e300d5bcdc46" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_1f932d6b-bb16-490c-a9d6-e71a43c30eb3" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_a38a7893-cebd-4b38-be10-e300d5bcdc46" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_a38a7893-cebd-4b38-be10-e300d5bcdc46_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_a38a7893-cebd-4b38-be10-e300d5bcdc46" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_a38a7893-cebd-4b38-be10-e300d5bcdc46_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_0a0568c4-555c-4b2b-beee-719e2b3c0a3a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_a38a7893-cebd-4b38-be10-e300d5bcdc46" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_0a0568c4-555c-4b2b-beee-719e2b3c0a3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_0bc8f6dc-a8b8-4a6e-bafa-3ec440b7faf8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_0a0568c4-555c-4b2b-beee-719e2b3c0a3a" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_0bc8f6dc-a8b8-4a6e-bafa-3ec440b7faf8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_5013e32e-7c97-4d6a-a4dd-94b59ec0cb19" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_1f932d6b-bb16-490c-a9d6-e71a43c30eb3" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_5013e32e-7c97-4d6a-a4dd-94b59ec0cb19" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_5013e32e-7c97-4d6a-a4dd-94b59ec0cb19_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_5013e32e-7c97-4d6a-a4dd-94b59ec0cb19" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_5013e32e-7c97-4d6a-a4dd-94b59ec0cb19_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_d66e6750-8284-43f6-bdf4-8e695890fc31" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_5013e32e-7c97-4d6a-a4dd-94b59ec0cb19" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_d66e6750-8284-43f6-bdf4-8e695890fc31" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerMember_1be0a7af-c51f-4673-96a3-26c013690df1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_d66e6750-8284-43f6-bdf4-8e695890fc31" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerMember_1be0a7af-c51f-4673-96a3-26c013690df1" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/RevenueandAccountsReceivableNetTradeReceivablesAssociatedwithSignificantCustomersDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#RevenueandAccountsReceivableNetTradeReceivablesAssociatedwithSignificantCustomersDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/RevenueandAccountsReceivableNetTradeReceivablesAssociatedwithSignificantCustomersDetails" xlink:type="extended" id="i1102802f3af24b8dbf51b9d247afad2c_RevenueandAccountsReceivableNetTradeReceivablesAssociatedwithSignificantCustomersDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_3c8b3f20-1781-4cdc-9ae2-2584798a391e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrent_b118db89-760d-49a6-8797-8765332cd1e1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_3c8b3f20-1781-4cdc-9ae2-2584798a391e" xlink:to="loc_us-gaap_ReceivablesNetCurrent_b118db89-760d-49a6-8797-8765332cd1e1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_3ed91501-00d2-45e1-89a2-aef7291deb2a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_3c8b3f20-1781-4cdc-9ae2-2584798a391e" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_3ed91501-00d2-45e1-89a2-aef7291deb2a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_990d95eb-a6c1-4ae0-a8b5-60e78dad98fe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_3c8b3f20-1781-4cdc-9ae2-2584798a391e" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_990d95eb-a6c1-4ae0-a8b5-60e78dad98fe" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_2602f512-3561-4840-90a5-d0fb0b6c660f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_990d95eb-a6c1-4ae0-a8b5-60e78dad98fe" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_2602f512-3561-4840-90a5-d0fb0b6c660f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_2602f512-3561-4840-90a5-d0fb0b6c660f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_2602f512-3561-4840-90a5-d0fb0b6c660f" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_2602f512-3561-4840-90a5-d0fb0b6c660f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_ec558bf2-d029-4780-8020-26b042da6bbb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_2602f512-3561-4840-90a5-d0fb0b6c660f" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_ec558bf2-d029-4780-8020-26b042da6bbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeAccountsReceivableMember_7c581c8c-9759-404a-8ad8-793b7334ca48" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TradeAccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_ec558bf2-d029-4780-8020-26b042da6bbb" xlink:to="loc_us-gaap_TradeAccountsReceivableMember_7c581c8c-9759-404a-8ad8-793b7334ca48" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_fb453212-310a-4730-95c5-2ba1b8ff1670" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_990d95eb-a6c1-4ae0-a8b5-60e78dad98fe" xlink:to="loc_srt_MajorCustomersAxis_fb453212-310a-4730-95c5-2ba1b8ff1670" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_fb453212-310a-4730-95c5-2ba1b8ff1670_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_fb453212-310a-4730-95c5-2ba1b8ff1670" xlink:to="loc_srt_NameOfMajorCustomerDomain_fb453212-310a-4730-95c5-2ba1b8ff1670_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_ab49c6e9-9c84-4732-a8b4-ccbbd6afc2bd" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_fb453212-310a-4730-95c5-2ba1b8ff1670" xlink:to="loc_srt_NameOfMajorCustomerDomain_ab49c6e9-9c84-4732-a8b4-ccbbd6afc2bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ComcastCorporationMember_0a01c631-26fa-49ed-961a-0557b379944d" xlink:href="ueic-20211231.xsd#ueic_ComcastCorporationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_ab49c6e9-9c84-4732-a8b4-ccbbd6afc2bd" xlink:to="loc_ueic_ComcastCorporationMember_0a01c631-26fa-49ed-961a-0557b379944d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_2f65dd4d-e049-4f9b-8276-c713a988ca9b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_990d95eb-a6c1-4ae0-a8b5-60e78dad98fe" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_2f65dd4d-e049-4f9b-8276-c713a988ca9b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_2f65dd4d-e049-4f9b-8276-c713a988ca9b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_2f65dd4d-e049-4f9b-8276-c713a988ca9b" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_2f65dd4d-e049-4f9b-8276-c713a988ca9b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_5147a972-ef05-4f78-875c-5a1be2e43800" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_2f65dd4d-e049-4f9b-8276-c713a988ca9b" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_5147a972-ef05-4f78-875c-5a1be2e43800" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_95d4eed6-e34e-4dfe-8282-e9d3aea6299a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_5147a972-ef05-4f78-875c-5a1be2e43800" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_95d4eed6-e34e-4dfe-8282-e9d3aea6299a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/InventoriesandSignificantSuppliersPurchasesfromSignificantSuppliersDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#InventoriesandSignificantSuppliersPurchasesfromSignificantSuppliersDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/InventoriesandSignificantSuppliersPurchasesfromSignificantSuppliersDetails" xlink:type="extended" id="i2fa08ace200b4f81b537cc9990f8ab84_InventoriesandSignificantSuppliersPurchasesfromSignificantSuppliersDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_650e2c2f-ed2b-4112-967e-93f6ae1452f2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_InventoryPurchases_c2c36420-de39-42b3-a60a-baf343c9ad05" xlink:href="ueic-20211231.xsd#ueic_InventoryPurchases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_650e2c2f-ed2b-4112-967e-93f6ae1452f2" xlink:to="loc_ueic_InventoryPurchases_c2c36420-de39-42b3-a60a-baf343c9ad05" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_2eca1e38-412d-4aea-9abf-f68470299e27" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_650e2c2f-ed2b-4112-967e-93f6ae1452f2" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_2eca1e38-412d-4aea-9abf-f68470299e27" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_61cacebc-cfa2-47b0-9b22-3c55c75abeaf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_650e2c2f-ed2b-4112-967e-93f6ae1452f2" xlink:to="loc_us-gaap_ConcentrationRiskTable_61cacebc-cfa2-47b0-9b22-3c55c75abeaf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_2b3ae0a2-a1aa-4976-9279-85ba200a755d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_61cacebc-cfa2-47b0-9b22-3c55c75abeaf" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_2b3ae0a2-a1aa-4976-9279-85ba200a755d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_2b3ae0a2-a1aa-4976-9279-85ba200a755d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_2b3ae0a2-a1aa-4976-9279-85ba200a755d" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_2b3ae0a2-a1aa-4976-9279-85ba200a755d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_80225e48-98cc-44f4-8a6c-20b027381080" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_2b3ae0a2-a1aa-4976-9279-85ba200a755d" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_80225e48-98cc-44f4-8a6c-20b027381080" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplierConcentrationRiskMember_764a35cf-28b1-4734-b33c-049b8f50258a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplierConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_80225e48-98cc-44f4-8a6c-20b027381080" xlink:to="loc_us-gaap_SupplierConcentrationRiskMember_764a35cf-28b1-4734-b33c-049b8f50258a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_a3a9caa2-8768-432e-8715-b254c3213260" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_61cacebc-cfa2-47b0-9b22-3c55c75abeaf" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_a3a9caa2-8768-432e-8715-b254c3213260" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_a3a9caa2-8768-432e-8715-b254c3213260_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_a3a9caa2-8768-432e-8715-b254c3213260" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_a3a9caa2-8768-432e-8715-b254c3213260_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_5c314058-8f93-45a1-860d-f00f7ed1ef00" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_a3a9caa2-8768-432e-8715-b254c3213260" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_5c314058-8f93-45a1-860d-f00f7ed1ef00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsTotalMember_fe50bbee-f6d2-4ea6-8c5d-43e8c987584c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfGoodsTotalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_5c314058-8f93-45a1-860d-f00f7ed1ef00" xlink:to="loc_us-gaap_CostOfGoodsTotalMember_fe50bbee-f6d2-4ea6-8c5d-43e8c987584c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AccountsPayableBenchmarkMember_d0887e76-987d-4bf8-b8f5-059663973fbc" xlink:href="ueic-20211231.xsd#ueic_AccountsPayableBenchmarkMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_5c314058-8f93-45a1-860d-f00f7ed1ef00" xlink:to="loc_ueic_AccountsPayableBenchmarkMember_d0887e76-987d-4bf8-b8f5-059663973fbc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_85b1a533-5004-4a5d-aa34-f712d03a8c75" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_61cacebc-cfa2-47b0-9b22-3c55c75abeaf" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_85b1a533-5004-4a5d-aa34-f712d03a8c75" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_85b1a533-5004-4a5d-aa34-f712d03a8c75_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_85b1a533-5004-4a5d-aa34-f712d03a8c75" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_85b1a533-5004-4a5d-aa34-f712d03a8c75_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_bffe17cb-2f3e-4fef-bb02-5139ad936fac" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_85b1a533-5004-4a5d-aa34-f712d03a8c75" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_bffe17cb-2f3e-4fef-bb02-5139ad936fac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_QorvoInternationalPteLtdMember_31cb229d-4b23-48b1-b537-9e6dd41e83a8" xlink:href="ueic-20211231.xsd#ueic_QorvoInternationalPteLtdMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_bffe17cb-2f3e-4fef-bb02-5139ad936fac" xlink:to="loc_ueic_QorvoInternationalPteLtdMember_31cb229d-4b23-48b1-b537-9e6dd41e83a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ZhejiangZhenYouElectronicsCoLtdMember_a45065c0-0324-4926-a934-e9f0696e0c9e" xlink:href="ueic-20211231.xsd#ueic_ZhejiangZhenYouElectronicsCoLtdMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_bffe17cb-2f3e-4fef-bb02-5139ad936fac" xlink:to="loc_ueic_ZhejiangZhenYouElectronicsCoLtdMember_a45065c0-0324-4926-a934-e9f0696e0c9e" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/PropertyPlantandEquipmentNetSummaryofPropertyPlantandEquipmentNetDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#PropertyPlantandEquipmentNetSummaryofPropertyPlantandEquipmentNetDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/PropertyPlantandEquipmentNetSummaryofPropertyPlantandEquipmentNetDetails" xlink:type="extended" id="i805ffa6565244883b076f210e6890da7_PropertyPlantandEquipmentNetSummaryofPropertyPlantandEquipmentNetDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2447bee1-ed53-411c-98fa-5ba1c8757662" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_ec0d800e-1dd4-49ab-b1fa-f6e1ea7a51b7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2447bee1-ed53-411c-98fa-5ba1c8757662" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_ec0d800e-1dd4-49ab-b1fa-f6e1ea7a51b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_486badb2-1830-400b-a536-29f57ae7e209" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2447bee1-ed53-411c-98fa-5ba1c8757662" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_486badb2-1830-400b-a536-29f57ae7e209" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_PropertyPlantandEquipmentNetExcludingConstructioninProgress_fe610391-2792-4364-a8d6-9aaf518c8a23" xlink:href="ueic-20211231.xsd#ueic_PropertyPlantandEquipmentNetExcludingConstructioninProgress"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2447bee1-ed53-411c-98fa-5ba1c8757662" xlink:to="loc_ueic_PropertyPlantandEquipmentNetExcludingConstructioninProgress_fe610391-2792-4364-a8d6-9aaf518c8a23" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressGross_9e0c726e-4855-46cc-bd4f-532481066306" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConstructionInProgressGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2447bee1-ed53-411c-98fa-5ba1c8757662" xlink:to="loc_us-gaap_ConstructionInProgressGross_9e0c726e-4855-46cc-bd4f-532481066306" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_7a538444-8ccb-43c3-8bc5-b9e5e2744af4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2447bee1-ed53-411c-98fa-5ba1c8757662" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_7a538444-8ccb-43c3-8bc5-b9e5e2744af4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_970b457d-f978-463b-92bd-79714e6657d9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2447bee1-ed53-411c-98fa-5ba1c8757662" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_970b457d-f978-463b-92bd-79714e6657d9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_bc5e40c5-1349-43ff-b845-1a7cd26ff6a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_970b457d-f978-463b-92bd-79714e6657d9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_bc5e40c5-1349-43ff-b845-1a7cd26ff6a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bc5e40c5-1349-43ff-b845-1a7cd26ff6a2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_bc5e40c5-1349-43ff-b845-1a7cd26ff6a2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_bc5e40c5-1349-43ff-b845-1a7cd26ff6a2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_bc5e40c5-1349-43ff-b845-1a7cd26ff6a2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_46a845ab-37ba-4668-8251-b85ada8ebffa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:to="loc_us-gaap_BuildingMember_46a845ab-37ba-4668-8251-b85ada8ebffa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_88c9796d-2821-494e-bb3a-35bd9aebf5bf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:to="loc_us-gaap_ComputerEquipmentMember_88c9796d-2821-494e-bb3a-35bd9aebf5bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_20b953c7-d8b2-4d69-ba0f-8218a35bc48d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_20b953c7-d8b2-4d69-ba0f-8218a35bc48d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_f3c8de41-84df-4f8d-ac7f-cd9fcc736b9d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_f3c8de41-84df-4f8d-ac7f-cd9fcc736b9d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_3b59e350-4b22-4d67-9ed7-d39010c02487" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MachineryAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_3b59e350-4b22-4d67-9ed7-d39010c02487" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_23779b5c-e93b-4f3c-81c6-ed58ded0d034" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_23779b5c-e93b-4f3c-81c6-ed58ded0d034" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ToolsDiesAndMoldsMember_9aace957-cd02-4864-891b-ff20b79cbc69" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ToolsDiesAndMoldsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ae4809e5-31af-4308-9b99-03f600760ae7" xlink:to="loc_us-gaap_ToolsDiesAndMoldsMember_9aace957-cd02-4864-891b-ff20b79cbc69" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/PropertyPlantandEquipmentNetConstructioninProgressDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#PropertyPlantandEquipmentNetConstructioninProgressDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/PropertyPlantandEquipmentNetConstructioninProgressDetails" xlink:type="extended" id="ieb417de13f5e49469697541b253d0123_PropertyPlantandEquipmentNetConstructioninProgressDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_754a6760-f15f-4951-b1a3-05fe39c9ef2e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressGross_6015e9dd-b791-41e2-9d06-342fd6422a20" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConstructionInProgressGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_754a6760-f15f-4951-b1a3-05fe39c9ef2e" xlink:to="loc_us-gaap_ConstructionInProgressGross_6015e9dd-b791-41e2-9d06-342fd6422a20" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_c538a48d-89b8-4338-9ab5-07b2a1d4278b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_754a6760-f15f-4951-b1a3-05fe39c9ef2e" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_c538a48d-89b8-4338-9ab5-07b2a1d4278b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_e1af9c3a-13d1-4c65-8ae6-1aab8acd8190" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_c538a48d-89b8-4338-9ab5-07b2a1d4278b" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_e1af9c3a-13d1-4c65-8ae6-1aab8acd8190" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e1af9c3a-13d1-4c65-8ae6-1aab8acd8190_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_e1af9c3a-13d1-4c65-8ae6-1aab8acd8190" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e1af9c3a-13d1-4c65-8ae6-1aab8acd8190_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1d2424d9-35f6-4de0-adc3-0562ecb51e62" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_e1af9c3a-13d1-4c65-8ae6-1aab8acd8190" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1d2424d9-35f6-4de0-adc3-0562ecb51e62" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_5e402d39-026e-4bda-b557-397ffec9fc96" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1d2424d9-35f6-4de0-adc3-0562ecb51e62" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_5e402d39-026e-4bda-b557-397ffec9fc96" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_4d745629-30c5-435c-b2f3-b2be1f6f64df" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MachineryAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1d2424d9-35f6-4de0-adc3-0562ecb51e62" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_4d745629-30c5-435c-b2f3-b2be1f6f64df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_2df84284-69d3-4440-a084-c892873aa056" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1d2424d9-35f6-4de0-adc3-0562ecb51e62" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_2df84284-69d3-4440-a084-c892873aa056" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ToolsDiesAndMoldsMember_bd13d856-dd08-4d7b-ac02-094542c7aef7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ToolsDiesAndMoldsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1d2424d9-35f6-4de0-adc3-0562ecb51e62" xlink:to="loc_us-gaap_ToolsDiesAndMoldsMember_bd13d856-dd08-4d7b-ac02-094542c7aef7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentOtherTypesMember_aed6405e-632e-4606-b561-f42037799d84" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentOtherTypesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1d2424d9-35f6-4de0-adc3-0562ecb51e62" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentOtherTypesMember_aed6405e-632e-4606-b561-f42037799d84" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/PropertyPlantandEquipmentNetLongLivedTangibleAssetsbyGeographicAreasDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#PropertyPlantandEquipmentNetLongLivedTangibleAssetsbyGeographicAreasDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/PropertyPlantandEquipmentNetLongLivedTangibleAssetsbyGeographicAreasDetails" xlink:type="extended" id="i96785e442d5c4cc6b8491b2b45506764_PropertyPlantandEquipmentNetLongLivedTangibleAssetsbyGeographicAreasDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f339d87b-9236-457f-b838-98b289db991c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncurrentAssets_9cb464eb-6622-4cc2-87fa-659bd8954937" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f339d87b-9236-457f-b838-98b289db991c" xlink:to="loc_us-gaap_NoncurrentAssets_9cb464eb-6622-4cc2-87fa-659bd8954937" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_e956d1c1-ee20-4445-aa83-befec314b067" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f339d87b-9236-457f-b838-98b289db991c" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_e956d1c1-ee20-4445-aa83-befec314b067" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_642a2f0e-7acc-4fec-bbb5-4c44b4915b82" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_e956d1c1-ee20-4445-aa83-befec314b067" xlink:to="loc_srt_StatementGeographicalAxis_642a2f0e-7acc-4fec-bbb5-4c44b4915b82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_642a2f0e-7acc-4fec-bbb5-4c44b4915b82_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_642a2f0e-7acc-4fec-bbb5-4c44b4915b82" xlink:to="loc_srt_SegmentGeographicalDomain_642a2f0e-7acc-4fec-bbb5-4c44b4915b82_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_d072c433-1175-4765-9c98-980a2735b2de" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_642a2f0e-7acc-4fec-bbb5-4c44b4915b82" xlink:to="loc_srt_SegmentGeographicalDomain_d072c433-1175-4765-9c98-980a2735b2de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_029f1a2f-427d-49bf-9b68-282e8b0101b2" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_d072c433-1175-4765-9c98-980a2735b2de" xlink:to="loc_country_US_029f1a2f-427d-49bf-9b68-282e8b0101b2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CN_bc4108cf-3995-4edb-ba83-7a73e4e94826" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_CN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_d072c433-1175-4765-9c98-980a2735b2de" xlink:to="loc_country_CN_bc4108cf-3995-4edb-ba83-7a73e4e94826" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_MX_771d4afc-51c8-4b8f-bc93-80948676e1f8" xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_MX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_d072c433-1175-4765-9c98-980a2735b2de" xlink:to="loc_country_MX_771d4afc-51c8-4b8f-bc93-80948676e1f8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AllOtherCountriesMember_7fcdffac-2c10-40ae-bac3-2daefb9c98f0" xlink:href="ueic-20211231.xsd#ueic_AllOtherCountriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_d072c433-1175-4765-9c98-980a2735b2de" xlink:to="loc_ueic_AllOtherCountriesMember_7fcdffac-2c10-40ae-bac3-2daefb9c98f0" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/GoodwillandIntangibleAssetsNetComponentsofIntangibleAssetsDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#GoodwillandIntangibleAssetsNetComponentsofIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/GoodwillandIntangibleAssetsNetComponentsofIntangibleAssetsDetails" xlink:type="extended" id="i9da24d7b713349cd95567c58bd8c0749_GoodwillandIntangibleAssetsNetComponentsofIntangibleAssetsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_538158f2-cd24-42b5-9e0b-fec6154f10fd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6aa53121-10a9-478e-bc89-b33d99a62a06" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_538158f2-cd24-42b5-9e0b-fec6154f10fd" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6aa53121-10a9-478e-bc89-b33d99a62a06" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_7feffd19-8e99-4cee-9e64-6c6556c63b8e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6aa53121-10a9-478e-bc89-b33d99a62a06" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_7feffd19-8e99-4cee-9e64-6c6556c63b8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_3ffd79e2-1535-4dd4-8d96-32f3ab6eb0b1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6aa53121-10a9-478e-bc89-b33d99a62a06" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_3ffd79e2-1535-4dd4-8d96-32f3ab6eb0b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_87b8e546-63dc-4548-ae03-b17d39c03c30" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6aa53121-10a9-478e-bc89-b33d99a62a06" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_87b8e546-63dc-4548-ae03-b17d39c03c30" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_f5afbe3e-ea15-4cfc-8da5-89e1fe23cbbc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6aa53121-10a9-478e-bc89-b33d99a62a06" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_f5afbe3e-ea15-4cfc-8da5-89e1fe23cbbc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_FiniteLivedIntangibleAssetsFullyAmortizedGross_3db632e4-5119-4ce2-8e7f-3055703c601a" xlink:href="ueic-20211231.xsd#ueic_FiniteLivedIntangibleAssetsFullyAmortizedGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_538158f2-cd24-42b5-9e0b-fec6154f10fd" xlink:to="loc_ueic_FiniteLivedIntangibleAssetsFullyAmortizedGross_3db632e4-5119-4ce2-8e7f-3055703c601a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2bfe7313-ad97-4fda-b234-03786ce425b7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_538158f2-cd24-42b5-9e0b-fec6154f10fd" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2bfe7313-ad97-4fda-b234-03786ce425b7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_cba7bda2-c460-4ce0-9165-ac7d9918c106" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2bfe7313-ad97-4fda-b234-03786ce425b7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_cba7bda2-c460-4ce0-9165-ac7d9918c106" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_cba7bda2-c460-4ce0-9165-ac7d9918c106_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_cba7bda2-c460-4ce0-9165-ac7d9918c106" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_cba7bda2-c460-4ce0-9165-ac7d9918c106_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_875876aa-b49d-45f2-bf6e-12ec4b1f7ca7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_cba7bda2-c460-4ce0-9165-ac7d9918c106" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_875876aa-b49d-45f2-bf6e-12ec4b1f7ca7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_b332ab0a-62f8-47ad-a3ad-8c57993c664c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_875876aa-b49d-45f2-bf6e-12ec4b1f7ca7" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_b332ab0a-62f8-47ad-a3ad-8c57993c664c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_c72a596d-aaaf-4107-a7dd-7fd635b1a5b9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_875876aa-b49d-45f2-bf6e-12ec4b1f7ca7" xlink:to="loc_us-gaap_CustomerRelationshipsMember_c72a596d-aaaf-4107-a7dd-7fd635b1a5b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_b0ddee1c-1729-4844-a95b-d08eb17a1a25" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_875876aa-b49d-45f2-bf6e-12ec4b1f7ca7" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_b0ddee1c-1729-4844-a95b-d08eb17a1a25" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DistributionRightsMember_d623cf6f-cb03-4b07-8b20-22c2c36e6aca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DistributionRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_875876aa-b49d-45f2-bf6e-12ec4b1f7ca7" xlink:to="loc_us-gaap_DistributionRightsMember_d623cf6f-cb03-4b07-8b20-22c2c36e6aca" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PatentsMember_3508bb2e-1955-4f6a-9fb8-a057aa41a672" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PatentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_875876aa-b49d-45f2-bf6e-12ec4b1f7ca7" xlink:to="loc_us-gaap_PatentsMember_3508bb2e-1955-4f6a-9fb8-a057aa41a672" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_711617a7-e7a9-48c4-9368-41875225a176" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TrademarksAndTradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_875876aa-b49d-45f2-bf6e-12ec4b1f7ca7" xlink:to="loc_us-gaap_TrademarksAndTradeNamesMember_711617a7-e7a9-48c4-9368-41875225a176" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_588b1f55-23f4-4c15-81e1-26f130586c7a" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2bfe7313-ad97-4fda-b234-03786ce425b7" xlink:to="loc_srt_RangeAxis_588b1f55-23f4-4c15-81e1-26f130586c7a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_588b1f55-23f4-4c15-81e1-26f130586c7a_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_588b1f55-23f4-4c15-81e1-26f130586c7a" xlink:to="loc_srt_RangeMember_588b1f55-23f4-4c15-81e1-26f130586c7a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_2a4056fc-607b-40c2-b89c-bac339510baf" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_588b1f55-23f4-4c15-81e1-26f130586c7a" xlink:to="loc_srt_RangeMember_2a4056fc-607b-40c2-b89c-bac339510baf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_021f06e8-03ec-4e01-bb68-fec8d9d6f54e" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_2a4056fc-607b-40c2-b89c-bac339510baf" xlink:to="loc_srt_MinimumMember_021f06e8-03ec-4e01-bb68-fec8d9d6f54e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_6b58ca8b-aabb-4451-9694-5816f44f7db0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_2a4056fc-607b-40c2-b89c-bac339510baf" xlink:to="loc_srt_MaximumMember_6b58ca8b-aabb-4451-9694-5816f44f7db0" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails" xlink:type="extended" id="if7b906d7a8c842a8a219de4fddf34c41_GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7c003c37-b773-4d12-9fe6-ca0bc32b819e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_db3039e0-0a47-4cfc-b571-595a23b8006e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7c003c37-b773-4d12-9fe6-ca0bc32b819e" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_db3039e0-0a47-4cfc-b571-595a23b8006e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f2f2775b-3182-4ca5-b714-733d93cf4894" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7c003c37-b773-4d12-9fe6-ca0bc32b819e" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f2f2775b-3182-4ca5-b714-733d93cf4894" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_74c1cfed-9cb6-494e-a273-14308f7d3f64" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f2f2775b-3182-4ca5-b714-733d93cf4894" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_74c1cfed-9cb6-494e-a273-14308f7d3f64" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_74c1cfed-9cb6-494e-a273-14308f7d3f64_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_74c1cfed-9cb6-494e-a273-14308f7d3f64" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_74c1cfed-9cb6-494e-a273-14308f7d3f64_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_7c5c8f27-9917-4527-8601-c9993807d025" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_74c1cfed-9cb6-494e-a273-14308f7d3f64" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_7c5c8f27-9917-4527-8601-c9993807d025" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_48df9cbf-cae5-499a-a534-4fb4e3c0bbc3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7c5c8f27-9917-4527-8601-c9993807d025" xlink:to="loc_us-gaap_CostOfSalesMember_48df9cbf-cae5-499a-a534-4fb4e3c0bbc3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_3fa9215b-6c97-4c36-a3cf-fadb85f48a8a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7c5c8f27-9917-4527-8601-c9993807d025" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_3fa9215b-6c97-4c36-a3cf-fadb85f48a8a" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/GoodwillandIntangibleAssetsNetEstimatedFutureAnnualAmortizationExpenseRelatedtoIntangibleAssetsDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#GoodwillandIntangibleAssetsNetEstimatedFutureAnnualAmortizationExpenseRelatedtoIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/GoodwillandIntangibleAssetsNetEstimatedFutureAnnualAmortizationExpenseRelatedtoIntangibleAssetsDetails" xlink:type="extended" id="i1267a64570864e368acdec5168125c0f_GoodwillandIntangibleAssetsNetEstimatedFutureAnnualAmortizationExpenseRelatedtoIntangibleAssetsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_821935c2-33ff-4926-b5ef-fa89bb34eb6e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_821935c2-33ff-4926-b5ef-fa89bb34eb6e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_5e71ba0a-0a84-4942-b2bc-04ea8cade87b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_5e71ba0a-0a84-4942-b2bc-04ea8cade87b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_429679d7-49cc-4321-b900-f5b2145a95e6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_429679d7-49cc-4321-b900-f5b2145a95e6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_da859a0f-77e3-44e0-826a-9676a9e852a5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_da859a0f-77e3-44e0-826a-9676a9e852a5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_5554f84e-fb9e-4b95-a197-d661f31815eb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_5554f84e-fb9e-4b95-a197-d661f31815eb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_c2d4076c-4ac8-4192-9d7e-2892bb72dc2f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_c2d4076c-4ac8-4192-9d7e-2892bb72dc2f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_b7dd32d3-c383-421b-85d5-abb478eb8e98" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_b7dd32d3-c383-421b-85d5-abb478eb8e98" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_81ff8c3c-2f94-438d-955a-7cd9ff9b4ba4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_81ff8c3c-2f94-438d-955a-7cd9ff9b4ba4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_0655364e-cbe1-4e53-9e63-65fbbc423dbe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_71826e07-fb44-45da-a7f4-fd2ecdf06142" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_0655364e-cbe1-4e53-9e63-65fbbc423dbe" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2c70c1d7-5065-4c78-bce3-8b647a6f74cb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_821935c2-33ff-4926-b5ef-fa89bb34eb6e" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2c70c1d7-5065-4c78-bce3-8b647a6f74cb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_9bda95b5-f70f-4e4b-82f6-9a71832d7eca" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_2c70c1d7-5065-4c78-bce3-8b647a6f74cb" xlink:to="loc_srt_RangeAxis_9bda95b5-f70f-4e4b-82f6-9a71832d7eca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_9bda95b5-f70f-4e4b-82f6-9a71832d7eca_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_9bda95b5-f70f-4e4b-82f6-9a71832d7eca" xlink:to="loc_srt_RangeMember_9bda95b5-f70f-4e4b-82f6-9a71832d7eca_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_eb2e7d1b-862d-46a7-80fa-592d42b9d78d" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_9bda95b5-f70f-4e4b-82f6-9a71832d7eca" xlink:to="loc_srt_RangeMember_eb2e7d1b-862d-46a7-80fa-592d42b9d78d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_WeightedAverageMember_97c99686-26e3-47f1-adc6-48607d39583c" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_WeightedAverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_eb2e7d1b-862d-46a7-80fa-592d42b9d78d" xlink:to="loc_srt_WeightedAverageMember_97c99686-26e3-47f1-adc6-48607d39583c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/LeasesNarrativeDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#LeasesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/LeasesNarrativeDetails" xlink:type="extended" id="i1d5c3e66afa24d7fb7f0220e954aa61d_LeasesNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeasedAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_76acdfd6-a41f-4b13-ba81-fd130e0f917f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_76acdfd6-a41f-4b13-ba81-fd130e0f917f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseImpairmentLoss_a1b724b0-8424-410d-bc9e-bf3f978d884d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_us-gaap_OperatingLeaseImpairmentLoss_a1b724b0-8424-410d-bc9e-bf3f978d884d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_LesseeOperatingLeaseLeaseNotYetCommencedNumberOfLeases_074c38cf-aa46-4f23-8eeb-b185b9144ebe" xlink:href="ueic-20211231.xsd#ueic_LesseeOperatingLeaseLeaseNotYetCommencedNumberOfLeases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_ueic_LesseeOperatingLeaseLeaseNotYetCommencedNumberOfLeases_074c38cf-aa46-4f23-8eeb-b185b9144ebe" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_9d273b4e-cca4-44f6-aca5-7ea9d1fc2222" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_9d273b4e-cca4-44f6-aca5-7ea9d1fc2222" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_OperatingLeaseLeaseNotYetCommencedLeaseLiability_da3ef849-9aac-4375-8d35-d0eae37364ad" xlink:href="ueic-20211231.xsd#ueic_OperatingLeaseLeaseNotYetCommencedLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_ueic_OperatingLeaseLeaseNotYetCommencedLeaseLiability_da3ef849-9aac-4375-8d35-d0eae37364ad" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_b0386b53-1359-4b4e-b939-21de259bcb87" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_b0386b53-1359-4b4e-b939-21de259bcb87" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_3a965fea-ecb0-4974-bab0-f504a158c668" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_3a965fea-ecb0-4974-bab0-f504a158c668" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_54da7dd9-b578-4313-a651-f3139010b8d2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_54da7dd9-b578-4313-a651-f3139010b8d2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_PropertyPlantandEquipmentRemainingDepreciablePeriod_c9ff8ba3-8b27-41e3-8ffb-032a89f8418b" xlink:href="ueic-20211231.xsd#ueic_PropertyPlantandEquipmentRemainingDepreciablePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_ueic_PropertyPlantandEquipmentRemainingDepreciablePeriod_c9ff8ba3-8b27-41e3-8ffb-032a89f8418b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_e9078dee-b9cd-42f6-b9bd-f12e6a849d1b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_e9078dee-b9cd-42f6-b9bd-f12e6a849d1b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_a322d402-f3c9-4171-9a83-2e6faa7d673c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfOperatingLeasedAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_eedd6d7f-71b4-4e35-a8a4-63d608d577fc" xlink:to="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_a322d402-f3c9-4171-9a83-2e6faa7d673c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_5f4541e1-1f86-44cf-b735-c43f82437a14" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_a322d402-f3c9-4171-9a83-2e6faa7d673c" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_5f4541e1-1f86-44cf-b735-c43f82437a14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_5f4541e1-1f86-44cf-b735-c43f82437a14_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_5f4541e1-1f86-44cf-b735-c43f82437a14" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_5f4541e1-1f86-44cf-b735-c43f82437a14_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_6ae6b627-59db-4598-a915-6a848667878f" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_5f4541e1-1f86-44cf-b735-c43f82437a14" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_6ae6b627-59db-4598-a915-6a848667878f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_PropertySubjectToRentEscalationsMember_45b156a3-d722-416e-94ac-86812af1a6c5" xlink:href="ueic-20211231.xsd#ueic_PropertySubjectToRentEscalationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_6ae6b627-59db-4598-a915-6a848667878f" xlink:to="loc_ueic_PropertySubjectToRentEscalationsMember_45b156a3-d722-416e-94ac-86812af1a6c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseContractualTermAxis_9e55a87c-d5d6-4a13-bd36-46750a8772c7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseContractualTermAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_a322d402-f3c9-4171-9a83-2e6faa7d673c" xlink:to="loc_us-gaap_LeaseContractualTermAxis_9e55a87c-d5d6-4a13-bd36-46750a8772c7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseContractualTermDomain_9e55a87c-d5d6-4a13-bd36-46750a8772c7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseContractualTermDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LeaseContractualTermAxis_9e55a87c-d5d6-4a13-bd36-46750a8772c7" xlink:to="loc_us-gaap_LeaseContractualTermDomain_9e55a87c-d5d6-4a13-bd36-46750a8772c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseContractualTermDomain_8f7dd155-0132-4e7b-898c-7f7ccc1d9c56" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseContractualTermDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LeaseContractualTermAxis_9e55a87c-d5d6-4a13-bd36-46750a8772c7" xlink:to="loc_us-gaap_LeaseContractualTermDomain_8f7dd155-0132-4e7b-898c-7f7ccc1d9c56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_FourYearTermMember_b973f230-ae5c-420b-8a82-fef335512d9a" xlink:href="ueic-20211231.xsd#ueic_FourYearTermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeaseContractualTermDomain_8f7dd155-0132-4e7b-898c-7f7ccc1d9c56" xlink:to="loc_ueic_FourYearTermMember_b973f230-ae5c-420b-8a82-fef335512d9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_654d6eec-2986-49de-8474-357a864bdb64" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_a322d402-f3c9-4171-9a83-2e6faa7d673c" xlink:to="loc_srt_StatementGeographicalAxis_654d6eec-2986-49de-8474-357a864bdb64" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_654d6eec-2986-49de-8474-357a864bdb64_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_654d6eec-2986-49de-8474-357a864bdb64" xlink:to="loc_srt_SegmentGeographicalDomain_654d6eec-2986-49de-8474-357a864bdb64_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_04024354-9d13-4e15-be99-4f540abbf1a0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_654d6eec-2986-49de-8474-357a864bdb64" xlink:to="loc_srt_SegmentGeographicalDomain_04024354-9d13-4e15-be99-4f540abbf1a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_YangzhouMember_f7cddd0d-ab92-4882-8235-09a242fedcc9" xlink:href="ueic-20211231.xsd#ueic_YangzhouMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_04024354-9d13-4e15-be99-4f540abbf1a0" xlink:to="loc_ueic_YangzhouMember_f7cddd0d-ab92-4882-8235-09a242fedcc9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_29c95f96-f25b-41ab-91bf-7d590e55be9d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_a322d402-f3c9-4171-9a83-2e6faa7d673c" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_29c95f96-f25b-41ab-91bf-7d590e55be9d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_29c95f96-f25b-41ab-91bf-7d590e55be9d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_29c95f96-f25b-41ab-91bf-7d590e55be9d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_29c95f96-f25b-41ab-91bf-7d590e55be9d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d19e7201-14d1-4ad9-8662-43e233249f8a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_29c95f96-f25b-41ab-91bf-7d590e55be9d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d19e7201-14d1-4ad9-8662-43e233249f8a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_86740581-2710-4431-b239-61a10f45142a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d19e7201-14d1-4ad9-8662-43e233249f8a" xlink:to="loc_us-gaap_BuildingMember_86740581-2710-4431-b239-61a10f45142a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_776add77-a2a4-4e6d-8d31-d896da1a95df" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_a322d402-f3c9-4171-9a83-2e6faa7d673c" xlink:to="loc_srt_RangeAxis_776add77-a2a4-4e6d-8d31-d896da1a95df" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_776add77-a2a4-4e6d-8d31-d896da1a95df_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_776add77-a2a4-4e6d-8d31-d896da1a95df" xlink:to="loc_srt_RangeMember_776add77-a2a4-4e6d-8d31-d896da1a95df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_1246adbd-bd5f-434f-ac7e-b7da8fa900c4" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_776add77-a2a4-4e6d-8d31-d896da1a95df" xlink:to="loc_srt_RangeMember_1246adbd-bd5f-434f-ac7e-b7da8fa900c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_9bfd09a4-9b53-48b0-bb23-ec69f603cdee" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_1246adbd-bd5f-434f-ac7e-b7da8fa900c4" xlink:to="loc_srt_MaximumMember_9bfd09a4-9b53-48b0-bb23-ec69f603cdee" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/LeasesOperatingLeaseExpenseOperatingleaseCashFlowsandSupplementalCashflowInformationDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#LeasesOperatingLeaseExpenseOperatingleaseCashFlowsandSupplementalCashflowInformationDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/LeasesOperatingLeaseExpenseOperatingleaseCashFlowsandSupplementalCashflowInformationDetails" xlink:type="extended" id="i7dd45acd68b14f68be60ed8cb20007cc_LeasesOperatingLeaseExpenseOperatingleaseCashFlowsandSupplementalCashflowInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_c1d72b08-5784-463b-b2ff-dfdc5cbbed49" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_9be72182-2d27-4815-ae7e-673b78953e1c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c1d72b08-5784-463b-b2ff-dfdc5cbbed49" xlink:to="loc_us-gaap_LeaseCost_9be72182-2d27-4815-ae7e-673b78953e1c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments_88b523a7-f1df-4c2e-8197-9088d7911293" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeasePayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c1d72b08-5784-463b-b2ff-dfdc5cbbed49" xlink:to="loc_us-gaap_OperatingLeasePayments_88b523a7-f1df-4c2e-8197-9088d7911293" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_572b00f5-4c8f-4a34-b49f-f9f35bd35e43" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c1d72b08-5784-463b-b2ff-dfdc5cbbed49" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_572b00f5-4c8f-4a34-b49f-f9f35bd35e43" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_NonCashReleaseOfOperatingLeaseObligations_c2a99ef8-fb71-4664-8a14-7ab621e88985" xlink:href="ueic-20211231.xsd#ueic_NonCashReleaseOfOperatingLeaseObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c1d72b08-5784-463b-b2ff-dfdc5cbbed49" xlink:to="loc_ueic_NonCashReleaseOfOperatingLeaseObligations_c2a99ef8-fb71-4664-8a14-7ab621e88985" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_d1c26616-9267-4192-ad82-db399219dab0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c1d72b08-5784-463b-b2ff-dfdc5cbbed49" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_d1c26616-9267-4192-ad82-db399219dab0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_39896337-0e87-47ef-b801-ba1b112fe86f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_d1c26616-9267-4192-ad82-db399219dab0" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_39896337-0e87-47ef-b801-ba1b112fe86f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_39896337-0e87-47ef-b801-ba1b112fe86f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_39896337-0e87-47ef-b801-ba1b112fe86f" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_39896337-0e87-47ef-b801-ba1b112fe86f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_38ac053c-2f55-4db9-a1e4-6367a9ad9a03" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_39896337-0e87-47ef-b801-ba1b112fe86f" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_38ac053c-2f55-4db9-a1e4-6367a9ad9a03" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_d5a7e929-1468-4cb4-bec4-6766a3bdbefb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_38ac053c-2f55-4db9-a1e4-6367a9ad9a03" xlink:to="loc_us-gaap_CostOfSalesMember_d5a7e929-1468-4cb4-bec4-6766a3bdbefb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_cffb1f3f-2bc2-4d72-a592-c529317734bb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_38ac053c-2f55-4db9-a1e4-6367a9ad9a03" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_cffb1f3f-2bc2-4d72-a592-c529317734bb" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/LineofCreditDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#LineofCreditDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/LineofCreditDetails" xlink:type="extended" id="i5edf7fa2fa6c4d8c843c17675002e030_LineofCreditDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_87fccb25-e02a-40a5-a9dc-8b4fc5b0dcb9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_87fccb25-e02a-40a5-a9dc-8b4fc5b0dcb9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_92091f1b-d0ad-479c-acf0-00d575905b5a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_92091f1b-d0ad-479c-acf0-00d575905b5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_2edf032b-dcdd-4245-846c-1451bc61a441" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_2edf032b-dcdd-4245-846c-1451bc61a441" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_c549a913-946f-4706-bc6f-552c3009c1be" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_c549a913-946f-4706-bc6f-552c3009c1be" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeeAmount_724d1a75-2e2c-473f-bec9-d4e54cac5dd2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityCommitmentFeeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeeAmount_724d1a75-2e2c-473f-bec9-d4e54cac5dd2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LinesOfCreditCurrent_51cb4f67-3f53-4c64-97e0-d119bc0be10c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LinesOfCreditCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:to="loc_us-gaap_LinesOfCreditCurrent_51cb4f67-3f53-4c64-97e0-d119bc0be10c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseShortTermBorrowings_2dbc801b-9dcd-444e-8289-09efe274b3cc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:to="loc_us-gaap_InterestExpenseShortTermBorrowings_2dbc801b-9dcd-444e-8289-09efe274b3cc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_39ee9ec8-3ab9-456a-9c73-c243642d4c6a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_f98861f0-9f67-4865-bfed-ee2600903953" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_39ee9ec8-3ab9-456a-9c73-c243642d4c6a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_68a04496-101d-4ecf-8e02-14dc7515554d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_39ee9ec8-3ab9-456a-9c73-c243642d4c6a" xlink:to="loc_us-gaap_CreditFacilityAxis_68a04496-101d-4ecf-8e02-14dc7515554d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_68a04496-101d-4ecf-8e02-14dc7515554d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_68a04496-101d-4ecf-8e02-14dc7515554d" xlink:to="loc_us-gaap_CreditFacilityDomain_68a04496-101d-4ecf-8e02-14dc7515554d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_05f83c20-1da5-4d73-8ec1-a6f36b83b8db" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_68a04496-101d-4ecf-8e02-14dc7515554d" xlink:to="loc_us-gaap_CreditFacilityDomain_05f83c20-1da5-4d73-8ec1-a6f36b83b8db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_ecf476ff-0bba-4f5a-8125-c48299bef357" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_05f83c20-1da5-4d73-8ec1-a6f36b83b8db" xlink:to="loc_us-gaap_LineOfCreditMember_ecf476ff-0bba-4f5a-8125-c48299bef357" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_5f8cb1d0-a2e4-4da1-96f7-1e2e7c54ee91" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_05f83c20-1da5-4d73-8ec1-a6f36b83b8db" xlink:to="loc_us-gaap_LetterOfCreditMember_5f8cb1d0-a2e4-4da1-96f7-1e2e7c54ee91" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_8f48a40c-cefc-4ffa-aae9-f23dbc90a8d8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_39ee9ec8-3ab9-456a-9c73-c243642d4c6a" xlink:to="loc_us-gaap_DebtInstrumentAxis_8f48a40c-cefc-4ffa-aae9-f23dbc90a8d8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_8f48a40c-cefc-4ffa-aae9-f23dbc90a8d8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_8f48a40c-cefc-4ffa-aae9-f23dbc90a8d8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_8f48a40c-cefc-4ffa-aae9-f23dbc90a8d8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_2dcbb83a-d05f-4149-8a58-381eca0ae26d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_8f48a40c-cefc-4ffa-aae9-f23dbc90a8d8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_2dcbb83a-d05f-4149-8a58-381eca0ae26d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SecondAmendedCreditAgreementMember_fca0f7a2-b4fb-4380-a8a2-a5c43efc5e90" xlink:href="ueic-20211231.xsd#ueic_SecondAmendedCreditAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2dcbb83a-d05f-4149-8a58-381eca0ae26d" xlink:to="loc_ueic_SecondAmendedCreditAgreementMember_fca0f7a2-b4fb-4380-a8a2-a5c43efc5e90" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_eb176867-cba1-46d6-b789-3a55970203dc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_39ee9ec8-3ab9-456a-9c73-c243642d4c6a" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_eb176867-cba1-46d6-b789-3a55970203dc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_eb176867-cba1-46d6-b789-3a55970203dc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_eb176867-cba1-46d6-b789-3a55970203dc" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_eb176867-cba1-46d6-b789-3a55970203dc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_a9ec0ee8-91bb-4401-81ac-5ba4397ad648" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_eb176867-cba1-46d6-b789-3a55970203dc" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_a9ec0ee8-91bb-4401-81ac-5ba4397ad648" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_UsBankMember_75690750-754a-49b5-90a5-9fb2fc303563" xlink:href="ueic-20211231.xsd#ueic_UsBankMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_a9ec0ee8-91bb-4401-81ac-5ba4397ad648" xlink:to="loc_ueic_UsBankMember_75690750-754a-49b5-90a5-9fb2fc303563" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_51c5159c-f24e-4739-a965-e390cb0b955d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_39ee9ec8-3ab9-456a-9c73-c243642d4c6a" xlink:to="loc_us-gaap_VariableRateAxis_51c5159c-f24e-4739-a965-e390cb0b955d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_51c5159c-f24e-4739-a965-e390cb0b955d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_51c5159c-f24e-4739-a965-e390cb0b955d" xlink:to="loc_us-gaap_VariableRateDomain_51c5159c-f24e-4739-a965-e390cb0b955d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_dbaca60d-4b2d-431b-9187-a40adbc6ec3d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_51c5159c-f24e-4739-a965-e390cb0b955d" xlink:to="loc_us-gaap_VariableRateDomain_dbaca60d-4b2d-431b-9187-a40adbc6ec3d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_040cc657-8069-45ea-aa03-eaae833d817c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_dbaca60d-4b2d-431b-9187-a40adbc6ec3d" xlink:to="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_040cc657-8069-45ea-aa03-eaae833d817c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BaseRateMember_c644de6c-464c-4dae-ab3c-aa498bc4120c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BaseRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_dbaca60d-4b2d-431b-9187-a40adbc6ec3d" xlink:to="loc_us-gaap_BaseRateMember_c644de6c-464c-4dae-ab3c-aa498bc4120c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_d97e2abe-16e7-408f-9f9a-9da988a92c3d" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_39ee9ec8-3ab9-456a-9c73-c243642d4c6a" xlink:to="loc_srt_RangeAxis_d97e2abe-16e7-408f-9f9a-9da988a92c3d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d97e2abe-16e7-408f-9f9a-9da988a92c3d_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_d97e2abe-16e7-408f-9f9a-9da988a92c3d" xlink:to="loc_srt_RangeMember_d97e2abe-16e7-408f-9f9a-9da988a92c3d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_54fc689e-dd92-42c1-abea-fab1939bd421" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_d97e2abe-16e7-408f-9f9a-9da988a92c3d" xlink:to="loc_srt_RangeMember_54fc689e-dd92-42c1-abea-fab1939bd421" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_e337fb1a-83c6-4fdc-91e6-6a81e38cc7fd" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_54fc689e-dd92-42c1-abea-fab1939bd421" xlink:to="loc_srt_MinimumMember_e337fb1a-83c6-4fdc-91e6-6a81e38cc7fd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_2ad47bd8-a127-4dcb-87e6-2f252eabec46" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_54fc689e-dd92-42c1-abea-fab1939bd421" xlink:to="loc_srt_MaximumMember_2ad47bd8-a127-4dcb-87e6-2f252eabec46" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/IncomeTaxesNarrativeDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#IncomeTaxesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended" id="i537ce50db39148f2b9176dbd1e5b53eb_IncomeTaxesNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:href="ueic-20211231.xsd#ueic_IncomeTaxesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardAmount_ef86bc4d-6821-4bde-af0a-9f4e28081a7e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxCreditCarryforwardAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_us-gaap_TaxCreditCarryforwardAmount_ef86bc4d-6821-4bde-af0a-9f4e28081a7e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwards_78a8749f-bc94-49b0-a37f-29636daff9ab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLossCarryforwards"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_us-gaap_OperatingLossCarryforwards_78a8749f-bc94-49b0-a37f-29636daff9ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_c16db450-1cb3-4254-8715-067985723f08" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_c16db450-1cb3-4254-8715-067985723f08" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_08621fba-74e1-4bc1-8636-84cef61266d6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_08621fba-74e1-4bc1-8636-84cef61266d6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_UnrecognizedTaxBenefitsIncludingIncomeTaxInterestAndPenaltiesAccrued_d5adde89-abd3-4c74-9d9e-d54102071505" xlink:href="ueic-20211231.xsd#ueic_UnrecognizedTaxBenefitsIncludingIncomeTaxInterestAndPenaltiesAccrued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_ueic_UnrecognizedTaxBenefitsIncludingIncomeTaxInterestAndPenaltiesAccrued_d5adde89-abd3-4c74-9d9e-d54102071505" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_4d040df7-9266-47a1-b7b0-6cae2fd6ff66" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_4d040df7-9266-47a1-b7b0-6cae2fd6ff66" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_f9129eb9-12de-44f0-b14a-f32ad99cb290" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_f9129eb9-12de-44f0-b14a-f32ad99cb290" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_DeferredTaxLiabilityStateTaxesDividendReinvestment_d38f2563-57be-4f82-be15-d1331a6151d6" xlink:href="ueic-20211231.xsd#ueic_DeferredTaxLiabilityStateTaxesDividendReinvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_ueic_DeferredTaxLiabilityStateTaxesDividendReinvestment_d38f2563-57be-4f82-be15-d1331a6151d6" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_IncomeTaxesTable_1b25ecbc-dc1b-4d4c-a1b4-ad026f0a661a" xlink:href="ueic-20211231.xsd#ueic_IncomeTaxesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ueic_IncomeTaxesLineItems_4d6356a3-d373-444c-93b7-ac9dfc1287d3" xlink:to="loc_ueic_IncomeTaxesTable_1b25ecbc-dc1b-4d4c-a1b4-ad026f0a661a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardAxis_6ae67006-e41a-4b24-9dc5-4f75c609340d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxCreditCarryforwardAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_IncomeTaxesTable_1b25ecbc-dc1b-4d4c-a1b4-ad026f0a661a" xlink:to="loc_us-gaap_TaxCreditCarryforwardAxis_6ae67006-e41a-4b24-9dc5-4f75c609340d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_6ae67006-e41a-4b24-9dc5-4f75c609340d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_6ae67006-e41a-4b24-9dc5-4f75c609340d" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_6ae67006-e41a-4b24-9dc5-4f75c609340d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_321781da-37ef-44d4-830c-cbd128174b37" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxCreditCarryforwardNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_6ae67006-e41a-4b24-9dc5-4f75c609340d" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_321781da-37ef-44d4-830c-cbd128174b37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchMember_b2685160-b58f-4f9d-b725-d38ffca7ae60" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TaxCreditCarryforwardNameDomain_321781da-37ef-44d4-830c-cbd128174b37" xlink:to="loc_us-gaap_ResearchMember_b2685160-b58f-4f9d-b725-d38ffca7ae60" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_74549e31-2413-4114-81c9-989264c4e5d8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_IncomeTaxesTable_1b25ecbc-dc1b-4d4c-a1b4-ad026f0a661a" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_74549e31-2413-4114-81c9-989264c4e5d8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_74549e31-2413-4114-81c9-989264c4e5d8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_74549e31-2413-4114-81c9-989264c4e5d8" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_74549e31-2413-4114-81c9-989264c4e5d8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_d77e8ec0-84a2-41af-ada9-480e8be1b043" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_74549e31-2413-4114-81c9-989264c4e5d8" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_d77e8ec0-84a2-41af-ada9-480e8be1b043" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticCountryMember_7cad0a8e-3883-4abf-8b2d-acef8f26961e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DomesticCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_d77e8ec0-84a2-41af-ada9-480e8be1b043" xlink:to="loc_us-gaap_DomesticCountryMember_7cad0a8e-3883-4abf-8b2d-acef8f26961e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_6d1847bd-7ff4-440d-8d6c-2d5093eacac5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StateAndLocalJurisdictionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_d77e8ec0-84a2-41af-ada9-480e8be1b043" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_6d1847bd-7ff4-440d-8d6c-2d5093eacac5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_84b2a7d1-0d1f-48fb-b935-05ce441f0701" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_d77e8ec0-84a2-41af-ada9-480e8be1b043" xlink:to="loc_us-gaap_ForeignCountryMember_84b2a7d1-0d1f-48fb-b935-05ce441f0701" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/AccruedCompensationNarrativeDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#AccruedCompensationNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/AccruedCompensationNarrativeDetails" xlink:type="extended" id="ida6ed38cee3749c680a59fcb419b1977_AccruedCompensationNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_a7a379b0-d92c-4658-bc0d-0a377f2b219e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_DisposalGroupIncludingDiscontinuedOperationIndemnificationPeriod_42844332-7f55-4154-99a6-a3c50638e24e" xlink:href="ueic-20211231.xsd#ueic_DisposalGroupIncludingDiscontinuedOperationIndemnificationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_a7a379b0-d92c-4658-bc0d-0a377f2b219e" xlink:to="loc_ueic_DisposalGroupIncludingDiscontinuedOperationIndemnificationPeriod_42844332-7f55-4154-99a6-a3c50638e24e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AccruedSocialInsuranceAdjustment_2ee20b17-f411-431c-81c1-251887cb3f1d" xlink:href="ueic-20211231.xsd#ueic_AccruedSocialInsuranceAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_a7a379b0-d92c-4658-bc0d-0a377f2b219e" xlink:to="loc_ueic_AccruedSocialInsuranceAdjustment_2ee20b17-f411-431c-81c1-251887cb3f1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_72361316-8ef6-4816-b5a3-172a5932a397" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_a7a379b0-d92c-4658-bc0d-0a377f2b219e" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_72361316-8ef6-4816-b5a3-172a5932a397" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_6a3fb16d-31c9-42d9-aade-eb6caa095cd5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_72361316-8ef6-4816-b5a3-172a5932a397" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_6a3fb16d-31c9-42d9-aade-eb6caa095cd5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_6a3fb16d-31c9-42d9-aade-eb6caa095cd5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_6a3fb16d-31c9-42d9-aade-eb6caa095cd5" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_6a3fb16d-31c9-42d9-aade-eb6caa095cd5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_30f3b300-0ef8-4ba6-ba1c-2fd88fd530c4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_6a3fb16d-31c9-42d9-aade-eb6caa095cd5" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_30f3b300-0ef8-4ba6-ba1c-2fd88fd530c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember_9c083361-1d20-495f-bdc1-692a72a19330" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_30f3b300-0ef8-4ba6-ba1c-2fd88fd530c4" xlink:to="loc_us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember_9c083361-1d20-495f-bdc1-692a72a19330" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_5b9497fb-4512-4a73-8361-bfc89711b36f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_72361316-8ef6-4816-b5a3-172a5932a397" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_5b9497fb-4512-4a73-8361-bfc89711b36f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_5b9497fb-4512-4a73-8361-bfc89711b36f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_5b9497fb-4512-4a73-8361-bfc89711b36f" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_5b9497fb-4512-4a73-8361-bfc89711b36f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_9c452206-295b-44b1-b651-571abaaabcd9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_5b9497fb-4512-4a73-8361-bfc89711b36f" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_9c452206-295b-44b1-b651-571abaaabcd9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_GuangzhouEntityMember_bcb9789e-44b9-43f4-ba4a-a09b3018ee9d" xlink:href="ueic-20211231.xsd#ueic_GuangzhouEntityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_9c452206-295b-44b1-b651-571abaaabcd9" xlink:to="loc_ueic_GuangzhouEntityMember_bcb9789e-44b9-43f4-ba4a-a09b3018ee9d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/CommitmentsandContingenciesLitigationDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#CommitmentsandContingenciesLitigationDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/CommitmentsandContingenciesLitigationDetails" xlink:type="extended" id="i0c9a57e51090441a84edf18b75719e06_CommitmentsandContingenciesLitigationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ContingenciesLineItems_8d89e066-e831-444d-851a-afa5efd75684" xlink:href="ueic-20211231.xsd#ueic_ContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyPatentsAllegedlyInfringedNumber_745867ec-c11a-4217-a6dc-cf14cbe5ff46" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LossContingencyPatentsAllegedlyInfringedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_8d89e066-e831-444d-851a-afa5efd75684" xlink:to="loc_us-gaap_LossContingencyPatentsAllegedlyInfringedNumber_745867ec-c11a-4217-a6dc-cf14cbe5ff46" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_LossContingencyPatentsAllegedlyInfringedPatentFamiliesNumber_342ccf12-f11d-4a86-b8b0-0151e14acffc" xlink:href="ueic-20211231.xsd#ueic_LossContingencyPatentsAllegedlyInfringedPatentFamiliesNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_8d89e066-e831-444d-851a-afa5efd75684" xlink:to="loc_ueic_LossContingencyPatentsAllegedlyInfringedPatentFamiliesNumber_342ccf12-f11d-4a86-b8b0-0151e14acffc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_NumberOfInterPartesReviewIPRRequestsDenied_c7ab2875-c2c6-4fa0-b590-3af829baf8e9" xlink:href="ueic-20211231.xsd#ueic_NumberOfInterPartesReviewIPRRequestsDenied"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_8d89e066-e831-444d-851a-afa5efd75684" xlink:to="loc_ueic_NumberOfInterPartesReviewIPRRequestsDenied_c7ab2875-c2c6-4fa0-b590-3af829baf8e9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_NumberOfInterPartesReviewIPRRequestsGranted_1db020ee-9289-4d19-908b-dfe956ecbc7a" xlink:href="ueic-20211231.xsd#ueic_NumberOfInterPartesReviewIPRRequestsGranted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_8d89e066-e831-444d-851a-afa5efd75684" xlink:to="loc_ueic_NumberOfInterPartesReviewIPRRequestsGranted_1db020ee-9289-4d19-908b-dfe956ecbc7a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ContingenciesTable_d8fdaf29-7c62-4289-b9a2-030da9a5c56d" xlink:href="ueic-20211231.xsd#ueic_ContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ueic_ContingenciesLineItems_8d89e066-e831-444d-851a-afa5efd75684" xlink:to="loc_ueic_ContingenciesTable_d8fdaf29-7c62-4289-b9a2-030da9a5c56d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_c7a6b927-f8f2-460b-8fce-91f82d1b8bf6" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_ContingenciesTable_d8fdaf29-7c62-4289-b9a2-030da9a5c56d" xlink:to="loc_srt_LitigationCaseAxis_c7a6b927-f8f2-460b-8fce-91f82d1b8bf6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_c7a6b927-f8f2-460b-8fce-91f82d1b8bf6_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_c7a6b927-f8f2-460b-8fce-91f82d1b8bf6" xlink:to="loc_srt_LitigationCaseTypeDomain_c7a6b927-f8f2-460b-8fce-91f82d1b8bf6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_9666cebc-56f6-4618-bbde-1ac5b0f8b9d3" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_c7a6b927-f8f2-460b-8fce-91f82d1b8bf6" xlink:to="loc_srt_LitigationCaseTypeDomain_9666cebc-56f6-4618-bbde-1ac5b0f8b9d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_PatentLawsuitAgainstRokuMember_df045d13-db86-4aca-9cde-8f076825dedd" xlink:href="ueic-20211231.xsd#ueic_PatentLawsuitAgainstRokuMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_9666cebc-56f6-4618-bbde-1ac5b0f8b9d3" xlink:to="loc_ueic_PatentLawsuitAgainstRokuMember_df045d13-db86-4aca-9cde-8f076825dedd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_RokuTCLHisenseandFunaiPatentInfringementITCMatterMember_e24aca2c-59b3-44aa-8b91-3f61579665f6" xlink:href="ueic-20211231.xsd#ueic_RokuTCLHisenseandFunaiPatentInfringementITCMatterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_9666cebc-56f6-4618-bbde-1ac5b0f8b9d3" xlink:to="loc_ueic_RokuTCLHisenseandFunaiPatentInfringementITCMatterMember_e24aca2c-59b3-44aa-8b91-3f61579665f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_TLCHisenseandFunaiITCMatterMember_5e9d223e-e402-42d4-b7df-620346093d49" xlink:href="ueic-20211231.xsd#ueic_TLCHisenseandFunaiITCMatterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_9666cebc-56f6-4618-bbde-1ac5b0f8b9d3" xlink:to="loc_ueic_TLCHisenseandFunaiITCMatterMember_5e9d223e-e402-42d4-b7df-620346093d49" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_RokuITCMatterMember_45fe8023-1fba-41dc-9541-7b2f53ffbf1f" xlink:href="ueic-20211231.xsd#ueic_RokuITCMatterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_9666cebc-56f6-4618-bbde-1ac5b0f8b9d3" xlink:to="loc_ueic_RokuITCMatterMember_45fe8023-1fba-41dc-9541-7b2f53ffbf1f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusAxis_1a685551-2fbd-458a-a663-d3063a008117" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LitigationStatusAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_ContingenciesTable_d8fdaf29-7c62-4289-b9a2-030da9a5c56d" xlink:to="loc_us-gaap_LitigationStatusAxis_1a685551-2fbd-458a-a663-d3063a008117" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_1a685551-2fbd-458a-a663-d3063a008117_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LitigationStatusAxis_1a685551-2fbd-458a-a663-d3063a008117" xlink:to="loc_us-gaap_LitigationStatusDomain_1a685551-2fbd-458a-a663-d3063a008117_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_0df36cc2-065b-4f5b-b75c-75f7c7f7d459" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LitigationStatusAxis_1a685551-2fbd-458a-a663-d3063a008117" xlink:to="loc_us-gaap_LitigationStatusDomain_0df36cc2-065b-4f5b-b75c-75f7c7f7d459" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PendingLitigationMember_3c645bc4-9a51-4e3e-8c4d-c616ac824781" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PendingLitigationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_0df36cc2-065b-4f5b-b75c-75f7c7f7d459" xlink:to="loc_us-gaap_PendingLitigationMember_3c645bc4-9a51-4e3e-8c4d-c616ac824781" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/CommitmentsandContingenciesDefinedBenefitPlanDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#CommitmentsandContingenciesDefinedBenefitPlanDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/CommitmentsandContingenciesDefinedBenefitPlanDetails" xlink:type="extended" id="icb03f81e10664cec9c063c9527c9836e_CommitmentsandContingenciesDefinedBenefitPlanDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_90f8bc27-9760-4dd8-b23c-6cfe0428a8bf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_DefinedBenefitPlanPercentageOfEmployeesEligibleForBenefits_9c52f180-0842-4e70-a13c-7ce615b4e9d6" xlink:href="ueic-20211231.xsd#ueic_DefinedBenefitPlanPercentageOfEmployeesEligibleForBenefits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_90f8bc27-9760-4dd8-b23c-6cfe0428a8bf" xlink:to="loc_ueic_DefinedBenefitPlanPercentageOfEmployeesEligibleForBenefits_9c52f180-0842-4e70-a13c-7ce615b4e9d6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_DefinedBenefitPlanRequisiteServicePeriod_01d24005-cfd7-40b6-919c-fd96b178b0a3" xlink:href="ueic-20211231.xsd#ueic_DefinedBenefitPlanRequisiteServicePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_90f8bc27-9760-4dd8-b23c-6cfe0428a8bf" xlink:to="loc_ueic_DefinedBenefitPlanRequisiteServicePeriod_01d24005-cfd7-40b6-919c-fd96b178b0a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_DefinedBenefitPlanBenefitObligationAccrualTermPerYearOfServiceProvided_88cbeac8-d30e-44d2-b761-b96f29572cc6" xlink:href="ueic-20211231.xsd#ueic_DefinedBenefitPlanBenefitObligationAccrualTermPerYearOfServiceProvided"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_90f8bc27-9760-4dd8-b23c-6cfe0428a8bf" xlink:to="loc_ueic_DefinedBenefitPlanBenefitObligationAccrualTermPerYearOfServiceProvided_88cbeac8-d30e-44d2-b761-b96f29572cc6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_26636f02-c86d-41b1-9a1a-c10a0c2f3ff2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_90f8bc27-9760-4dd8-b23c-6cfe0428a8bf" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_26636f02-c86d-41b1-9a1a-c10a0c2f3ff2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_e944c86f-18ac-487c-ad23-4e3e75c3b26a" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_26636f02-c86d-41b1-9a1a-c10a0c2f3ff2" xlink:to="loc_dei_LegalEntityAxis_e944c86f-18ac-487c-ad23-4e3e75c3b26a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_e944c86f-18ac-487c-ad23-4e3e75c3b26a_default" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_e944c86f-18ac-487c-ad23-4e3e75c3b26a" xlink:to="loc_dei_EntityDomain_e944c86f-18ac-487c-ad23-4e3e75c3b26a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_29bf6bd3-2a58-44ff-b326-be07009869ba" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_e944c86f-18ac-487c-ad23-4e3e75c3b26a" xlink:to="loc_dei_EntityDomain_29bf6bd3-2a58-44ff-b326-be07009869ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_IndiaSubsidiaryMember_34e54974-d6e8-4c50-a684-77e75e152bb9" xlink:href="ueic-20211231.xsd#ueic_IndiaSubsidiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_29bf6bd3-2a58-44ff-b326-be07009869ba" xlink:to="loc_ueic_IndiaSubsidiaryMember_34e54974-d6e8-4c50-a684-77e75e152bb9" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/TreasuryStockNarrativeDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#TreasuryStockNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/TreasuryStockNarrativeDetails" xlink:type="extended" id="ifa9a0e2f65354ad290b082f19208d65e_TreasuryStockNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems_7b67ab65-b72e-4a95-965f-c78499f2ac3f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityClassOfTreasuryStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_43816750-516e-4c71-b4cb-bed0b41b9f75" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_7b67ab65-b72e-4a95-965f-c78499f2ac3f" xlink:to="loc_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_43816750-516e-4c71-b4cb-bed0b41b9f75" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_4fa3ff20-ca8b-49c4-b4eb-f26ee2911816" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_7b67ab65-b72e-4a95-965f-c78499f2ac3f" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_4fa3ff20-ca8b-49c4-b4eb-f26ee2911816" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable_58f8b3c2-48e9-4b99-8736-79c16e39739a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfTreasuryStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_7b67ab65-b72e-4a95-965f-c78499f2ac3f" xlink:to="loc_us-gaap_ClassOfTreasuryStockTable_58f8b3c2-48e9-4b99-8736-79c16e39739a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramAxis_bb9313b9-295c-494b-94b6-b32353bc60c5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareRepurchaseProgramAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_58f8b3c2-48e9-4b99-8736-79c16e39739a" xlink:to="loc_us-gaap_ShareRepurchaseProgramAxis_bb9313b9-295c-494b-94b6-b32353bc60c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_bb9313b9-295c-494b-94b6-b32353bc60c5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_bb9313b9-295c-494b-94b6-b32353bc60c5" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_bb9313b9-295c-494b-94b6-b32353bc60c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_f16c16a1-5ddb-4223-a0ce-29a64864496e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_bb9313b9-295c-494b-94b6-b32353bc60c5" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_f16c16a1-5ddb-4223-a0ce-29a64864496e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_November2021ProgramMember_6e151f36-93f1-4a41-ae94-6258ca96aee0" xlink:href="ueic-20211231.xsd#ueic_November2021ProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_f16c16a1-5ddb-4223-a0ce-29a64864496e" xlink:to="loc_ueic_November2021ProgramMember_6e151f36-93f1-4a41-ae94-6258ca96aee0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_February2022ProgramMember_8531472b-95e6-443a-844b-391560f3d92a" xlink:href="ueic-20211231.xsd#ueic_February2022ProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_f16c16a1-5ddb-4223-a0ce-29a64864496e" xlink:to="loc_ueic_February2022ProgramMember_8531472b-95e6-443a-844b-391560f3d92a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_a9b0463d-9332-4ba7-a3c7-cfbae0e66535" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_58f8b3c2-48e9-4b99-8736-79c16e39739a" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_a9b0463d-9332-4ba7-a3c7-cfbae0e66535" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_a9b0463d-9332-4ba7-a3c7-cfbae0e66535_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_a9b0463d-9332-4ba7-a3c7-cfbae0e66535" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_a9b0463d-9332-4ba7-a3c7-cfbae0e66535_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_66a0c0b9-94e5-48f6-a2e0-c298b2cd66f6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_a9b0463d-9332-4ba7-a3c7-cfbae0e66535" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_66a0c0b9-94e5-48f6-a2e0-c298b2cd66f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_a375c111-72ef-4681-ab02-63c7088f6fd3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_66a0c0b9-94e5-48f6-a2e0-c298b2cd66f6" xlink:to="loc_us-gaap_SubsequentEventMember_a375c111-72ef-4681-ab02-63c7088f6fd3" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#StockBasedCompensationStockBasedCompensationExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails" xlink:type="extended" id="i57b6f7813ce4429699980d200a82d1ef_StockBasedCompensationStockBasedCompensationExpenseDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_0012cbfd-af44-49dd-bfc3-730d3f045f74" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_032da05a-86fc-49fc-a5ba-ef8a0e76bc0f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_0012cbfd-af44-49dd-bfc3-730d3f045f74" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_032da05a-86fc-49fc-a5ba-ef8a0e76bc0f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_841c0864-5868-42d2-8ca8-7b104a59da90" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_0012cbfd-af44-49dd-bfc3-730d3f045f74" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_841c0864-5868-42d2-8ca8-7b104a59da90" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_d8310020-39c2-448b-ba33-f674c4aa5ffd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_0012cbfd-af44-49dd-bfc3-730d3f045f74" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_d8310020-39c2-448b-ba33-f674c4aa5ffd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_91595367-ea09-4659-b15d-ddc75d13c53f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_d8310020-39c2-448b-ba33-f674c4aa5ffd" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_91595367-ea09-4659-b15d-ddc75d13c53f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_91595367-ea09-4659-b15d-ddc75d13c53f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_91595367-ea09-4659-b15d-ddc75d13c53f" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_91595367-ea09-4659-b15d-ddc75d13c53f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_973f2df0-2057-492f-8551-0d70e475db50" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_91595367-ea09-4659-b15d-ddc75d13c53f" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_973f2df0-2057-492f-8551-0d70e475db50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_36880acd-e92f-4546-bc59-efff8e8e327c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_973f2df0-2057-492f-8551-0d70e475db50" xlink:to="loc_us-gaap_CostOfSalesMember_36880acd-e92f-4546-bc59-efff8e8e327c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_f43aa710-0186-477b-a550-928deb31a83d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_973f2df0-2057-492f-8551-0d70e475db50" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_f43aa710-0186-477b-a550-928deb31a83d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_2d566e4d-283d-4c5d-b32e-083447d39fd8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_973f2df0-2057-492f-8551-0d70e475db50" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_2d566e4d-283d-4c5d-b32e-083447d39fd8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GranteeStatusAxis_9272f052-fc7b-4af1-b8eb-04a4a230f2a7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GranteeStatusAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_d8310020-39c2-448b-ba33-f674c4aa5ffd" xlink:to="loc_us-gaap_GranteeStatusAxis_9272f052-fc7b-4af1-b8eb-04a4a230f2a7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GranteeStatusDomain_9272f052-fc7b-4af1-b8eb-04a4a230f2a7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GranteeStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_GranteeStatusAxis_9272f052-fc7b-4af1-b8eb-04a4a230f2a7" xlink:to="loc_us-gaap_GranteeStatusDomain_9272f052-fc7b-4af1-b8eb-04a4a230f2a7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GranteeStatusDomain_80babe53-a0e8-4692-9106-eaab61ed6302" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GranteeStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_GranteeStatusAxis_9272f052-fc7b-4af1-b8eb-04a4a230f2a7" xlink:to="loc_us-gaap_GranteeStatusDomain_80babe53-a0e8-4692-9106-eaab61ed6302" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedPaymentArrangementEmployeeMember_9685a93b-90a5-4cc9-873a-a880115aa8a9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedPaymentArrangementEmployeeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GranteeStatusDomain_80babe53-a0e8-4692-9106-eaab61ed6302" xlink:to="loc_us-gaap_ShareBasedPaymentArrangementEmployeeMember_9685a93b-90a5-4cc9-873a-a880115aa8a9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedPaymentArrangementNonemployeeMember_61ad2a90-d21f-450a-b0d8-60243ab98f14" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedPaymentArrangementNonemployeeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GranteeStatusDomain_80babe53-a0e8-4692-9106-eaab61ed6302" xlink:to="loc_us-gaap_ShareBasedPaymentArrangementNonemployeeMember_61ad2a90-d21f-450a-b0d8-60243ab98f14" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/StockBasedCompensationNarrativeDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#StockBasedCompensationNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/StockBasedCompensationNarrativeDetails" xlink:type="extended" id="iaa424eb8d09b47f7a306c82263b47a1e_StockBasedCompensationNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ProceedsFromStockOptionsExercisedValueOfSharesWithheldInLieuOfCash_ddc3ca23-c0e1-4034-a7e2-4b7539f4882b" xlink:href="ueic-20211231.xsd#ueic_ProceedsFromStockOptionsExercisedValueOfSharesWithheldInLieuOfCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_ueic_ProceedsFromStockOptionsExercisedValueOfSharesWithheldInLieuOfCash_ddc3ca23-c0e1-4034-a7e2-4b7539f4882b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_ea8927b6-4535-48b6-b88e-413961f075ed" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_ea8927b6-4535-48b6-b88e-413961f075ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxExpenseFromStockOptionsExercised_f5f54e26-5884-4f33-a165-02bdf254481f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxExpenseFromStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_DeferredTaxExpenseFromStockOptionsExercised_f5f54e26-5884-4f33-a165-02bdf254481f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_55d0f875-ca5f-4f41-a413-ee67ec37e62c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_55d0f875-ca5f-4f41-a413-ee67ec37e62c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_754208ee-7561-4fa0-8f0a-7814de4b7897" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_754208ee-7561-4fa0-8f0a-7814de4b7897" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c27730c6-62e5-40d4-9774-a42dfbfe2d93" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c27730c6-62e5-40d4-9774-a42dfbfe2d93" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_5c9936ad-648b-47fb-8123-f5e9f6c93807" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_5c9936ad-648b-47fb-8123-f5e9f6c93807" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_798a2504-11df-4af4-82ab-d6d1024dcc08" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_798a2504-11df-4af4-82ab-d6d1024dcc08" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue_d790e451-a518-4244-9f2c-c0d4f17fbc8e" xlink:href="ueic-20211231.xsd#ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue_d790e451-a518-4244-9f2c-c0d4f17fbc8e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_fc3a7930-07be-48f2-9037-30a89e767742" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_fc3a7930-07be-48f2-9037-30a89e767742" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantDateFairValue_ca26510d-e210-43ba-968e-c08826dad135" xlink:href="ueic-20211231.xsd#ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantDateFairValue_ca26510d-e210-43ba-968e-c08826dad135" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_5b1e5f61-6add-4585-bb43-705b8652f7d4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_5b1e5f61-6add-4585-bb43-705b8652f7d4" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardsCumulativeGrantsToDate_7349b5e1-e9d3-49dc-9041-43b83533a0a9" xlink:href="ueic-20211231.xsd#ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardsCumulativeGrantsToDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_ueic_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardsCumulativeGrantsToDate_7349b5e1-e9d3-49dc-9041-43b83533a0a9" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01ab00a3-d8e4-406c-b8e5-6e32b32b1fd0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f003750e-c179-4b25-8b58-c817f5aa2105" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01ab00a3-d8e4-406c-b8e5-6e32b32b1fd0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_6ee830b4-1aa2-4746-9de7-365467d11eda" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01ab00a3-d8e4-406c-b8e5-6e32b32b1fd0" xlink:to="loc_srt_TitleOfIndividualAxis_6ee830b4-1aa2-4746-9de7-365467d11eda" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_6ee830b4-1aa2-4746-9de7-365467d11eda_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_6ee830b4-1aa2-4746-9de7-365467d11eda" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_6ee830b4-1aa2-4746-9de7-365467d11eda_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_14219562-87b8-4128-8848-bb1be00a75aa" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_6ee830b4-1aa2-4746-9de7-365467d11eda" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_14219562-87b8-4128-8848-bb1be00a75aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CertainExecutiveEmployeesMember_d159daa6-00fe-468a-86f2-b51cf9f4740a" xlink:href="ueic-20211231.xsd#ueic_CertainExecutiveEmployeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_14219562-87b8-4128-8848-bb1be00a75aa" xlink:to="loc_ueic_CertainExecutiveEmployeesMember_d159daa6-00fe-468a-86f2-b51cf9f4740a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_d6f79b8d-095b-46fb-809d-503f8744bd02" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01ab00a3-d8e4-406c-b8e5-6e32b32b1fd0" xlink:to="loc_us-gaap_AwardTypeAxis_d6f79b8d-095b-46fb-809d-503f8744bd02" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d6f79b8d-095b-46fb-809d-503f8744bd02_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_d6f79b8d-095b-46fb-809d-503f8744bd02" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d6f79b8d-095b-46fb-809d-503f8744bd02_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_23fc7183-1428-46d9-ad5d-4bcce7feb889" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_d6f79b8d-095b-46fb-809d-503f8744bd02" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_23fc7183-1428-46d9-ad5d-4bcce7feb889" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_b74bdd74-7743-4715-b367-2117ef091381" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_23fc7183-1428-46d9-ad5d-4bcce7feb889" xlink:to="loc_us-gaap_EmployeeStockOptionMember_b74bdd74-7743-4715-b367-2117ef091381" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_40647c9f-ac3f-49ea-a59c-29587dded56d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_23fc7183-1428-46d9-ad5d-4bcce7feb889" xlink:to="loc_us-gaap_RestrictedStockMember_40647c9f-ac3f-49ea-a59c-29587dded56d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockAppreciationRightsAndPerformanceStockUnitsMember_30abef6a-3cdf-47f2-874f-f32d4638a769" xlink:href="ueic-20211231.xsd#ueic_StockAppreciationRightsAndPerformanceStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_23fc7183-1428-46d9-ad5d-4bcce7feb889" xlink:to="loc_ueic_StockAppreciationRightsAndPerformanceStockUnitsMember_30abef6a-3cdf-47f2-874f-f32d4638a769" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_84f944c9-0fd9-4931-90db-22efc126f7e9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01ab00a3-d8e4-406c-b8e5-6e32b32b1fd0" xlink:to="loc_us-gaap_VestingAxis_84f944c9-0fd9-4931-90db-22efc126f7e9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_84f944c9-0fd9-4931-90db-22efc126f7e9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_84f944c9-0fd9-4931-90db-22efc126f7e9" xlink:to="loc_us-gaap_VestingDomain_84f944c9-0fd9-4931-90db-22efc126f7e9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_e5dfff0e-b22b-44c9-ba63-5522393f5429" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_84f944c9-0fd9-4931-90db-22efc126f7e9" xlink:to="loc_us-gaap_VestingDomain_e5dfff0e-b22b-44c9-ba63-5522393f5429" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_13c3c951-021e-49d1-a48e-9ee8139353d4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_e5dfff0e-b22b-44c9-ba63-5522393f5429" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_13c3c951-021e-49d1-a48e-9ee8139353d4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SharebasedCompensationAwardQuarterlyVestingThereafterMember_3b155add-75ef-4698-8c0c-05e45fc621a8" xlink:href="ueic-20211231.xsd#ueic_SharebasedCompensationAwardQuarterlyVestingThereafterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_e5dfff0e-b22b-44c9-ba63-5522393f5429" xlink:to="loc_ueic_SharebasedCompensationAwardQuarterlyVestingThereafterMember_3b155add-75ef-4698-8c0c-05e45fc621a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_cd00f7a9-c54c-477e-a141-08603c9cc54c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_e5dfff0e-b22b-44c9-ba63-5522393f5429" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_cd00f7a9-c54c-477e-a141-08603c9cc54c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_ab49e952-38b3-4898-8ad1-274644b5b6ad" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01ab00a3-d8e4-406c-b8e5-6e32b32b1fd0" xlink:to="loc_srt_RangeAxis_ab49e952-38b3-4898-8ad1-274644b5b6ad" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_ab49e952-38b3-4898-8ad1-274644b5b6ad_default" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_ab49e952-38b3-4898-8ad1-274644b5b6ad" xlink:to="loc_srt_RangeMember_ab49e952-38b3-4898-8ad1-274644b5b6ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_050b147a-008f-4f90-8a21-0743642b8def" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_ab49e952-38b3-4898-8ad1-274644b5b6ad" xlink:to="loc_srt_RangeMember_050b147a-008f-4f90-8a21-0743642b8def" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_0fedc920-44fd-4d20-bf50-c63fb37d3215" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_050b147a-008f-4f90-8a21-0743642b8def" xlink:to="loc_srt_MinimumMember_0fedc920-44fd-4d20-bf50-c63fb37d3215" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_8fdc6e97-8288-4fc9-b4fa-975b610d5580" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_050b147a-008f-4f90-8a21-0743642b8def" xlink:to="loc_srt_MaximumMember_8fdc6e97-8288-4fc9-b4fa-975b610d5580" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_cdd70cb1-2b49-42af-a56e-edfbddd53ca3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_01ab00a3-d8e4-406c-b8e5-6e32b32b1fd0" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_cdd70cb1-2b49-42af-a56e-edfbddd53ca3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_cdd70cb1-2b49-42af-a56e-edfbddd53ca3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_cdd70cb1-2b49-42af-a56e-edfbddd53ca3" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_cdd70cb1-2b49-42af-a56e-edfbddd53ca3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_72f4f2d9-de77-418d-b714-e43d7788cacf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_cdd70cb1-2b49-42af-a56e-edfbddd53ca3" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_72f4f2d9-de77-418d-b714-e43d7788cacf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_9439fbbc-6e34-4eb8-b49e-8fb017ede87a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_72f4f2d9-de77-418d-b714-e43d7788cacf" xlink:to="loc_us-gaap_SubsequentEventMember_9439fbbc-6e34-4eb8-b49e-8fb017ede87a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/StockBasedCompensationSignificantOptionGroupsOutstandingandRelatedWeightedAverageExercisePriceandLifeInformationDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#StockBasedCompensationSignificantOptionGroupsOutstandingandRelatedWeightedAverageExercisePriceandLifeInformationDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/StockBasedCompensationSignificantOptionGroupsOutstandingandRelatedWeightedAverageExercisePriceandLifeInformationDetails" xlink:type="extended" id="i7cad185f4f474b8391dcf6a0aa5b9a79_StockBasedCompensationSignificantOptionGroupsOutstandingandRelatedWeightedAverageExercisePriceandLifeInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_e4232bd2-721b-405a-8210-3d4cf6034ee4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_e787098c-6dc6-423a-9cc2-9e4d2c1846a9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_e4232bd2-721b-405a-8210-3d4cf6034ee4" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_e787098c-6dc6-423a-9cc2-9e4d2c1846a9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_23ca10d0-17bd-436c-9055-082379a08772" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_e4232bd2-721b-405a-8210-3d4cf6034ee4" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_23ca10d0-17bd-436c-9055-082379a08772" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockOptionsOutstandingAbstract_6bbfbc78-22ad-43e7-b961-c2370f29a7da" xlink:href="ueic-20211231.xsd#ueic_StockOptionsOutstandingAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_e4232bd2-721b-405a-8210-3d4cf6034ee4" xlink:to="loc_ueic_StockOptionsOutstandingAbstract_6bbfbc78-22ad-43e7-b961-c2370f29a7da" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_c2f64aaf-6998-4f5b-8f97-0b331766a609" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_StockOptionsOutstandingAbstract_6bbfbc78-22ad-43e7-b961-c2370f29a7da" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_c2f64aaf-6998-4f5b-8f97-0b331766a609" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_620e3427-794d-4b5a-b881-dd79381f82a1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_StockOptionsOutstandingAbstract_6bbfbc78-22ad-43e7-b961-c2370f29a7da" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_620e3427-794d-4b5a-b881-dd79381f82a1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_d60b8a55-1f4a-48e3-ae07-d66923c7eeb5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_StockOptionsOutstandingAbstract_6bbfbc78-22ad-43e7-b961-c2370f29a7da" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_d60b8a55-1f4a-48e3-ae07-d66923c7eeb5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockOptionsExercisableAbstract_20adf2fe-1904-4cf5-b417-6f3ee46cf89a" xlink:href="ueic-20211231.xsd#ueic_StockOptionsExercisableAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_e4232bd2-721b-405a-8210-3d4cf6034ee4" xlink:to="loc_ueic_StockOptionsExercisableAbstract_20adf2fe-1904-4cf5-b417-6f3ee46cf89a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_cb29a6f7-7271-4ba6-b2db-5ead927bce3a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_StockOptionsExercisableAbstract_20adf2fe-1904-4cf5-b417-6f3ee46cf89a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_cb29a6f7-7271-4ba6-b2db-5ead927bce3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_b7246526-f1eb-4089-9f7f-10abd7dd9788" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_StockOptionsExercisableAbstract_20adf2fe-1904-4cf5-b417-6f3ee46cf89a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_b7246526-f1eb-4089-9f7f-10abd7dd9788" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_98be9e0d-21f7-4be6-a4c9-f9fe6f349feb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_e4232bd2-721b-405a-8210-3d4cf6034ee4" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_98be9e0d-21f7-4be6-a4c9-f9fe6f349feb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_f3197763-85a8-4f94-81ed-0ff3bd644ce9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_98be9e0d-21f7-4be6-a4c9-f9fe6f349feb" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_f3197763-85a8-4f94-81ed-0ff3bd644ce9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_f3197763-85a8-4f94-81ed-0ff3bd644ce9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_f3197763-85a8-4f94-81ed-0ff3bd644ce9" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_f3197763-85a8-4f94-81ed-0ff3bd644ce9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_8e496ab4-8c87-4d5c-a983-f6a41030bb69" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_f3197763-85a8-4f94-81ed-0ff3bd644ce9" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_8e496ab4-8c87-4d5c-a983-f6a41030bb69" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ExercisePriceRange1Member_0a85cf7f-84a8-43d4-8ac7-522234bfa2bd" xlink:href="ueic-20211231.xsd#ueic_ExercisePriceRange1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_8e496ab4-8c87-4d5c-a983-f6a41030bb69" xlink:to="loc_ueic_ExercisePriceRange1Member_0a85cf7f-84a8-43d4-8ac7-522234bfa2bd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ExercisePriceRange2Member_5243a207-2e56-431f-be6d-d52a2ac5e87f" xlink:href="ueic-20211231.xsd#ueic_ExercisePriceRange2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_8e496ab4-8c87-4d5c-a983-f6a41030bb69" xlink:to="loc_ueic_ExercisePriceRange2Member_5243a207-2e56-431f-be6d-d52a2ac5e87f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ExercisePriceRange3Member_a05b16c1-11bb-4297-96c0-a57fde121c6f" xlink:href="ueic-20211231.xsd#ueic_ExercisePriceRange3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_8e496ab4-8c87-4d5c-a983-f6a41030bb69" xlink:to="loc_ueic_ExercisePriceRange3Member_a05b16c1-11bb-4297-96c0-a57fde121c6f" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/StockBasedCompensationDetailedInformationRegardingActiveStockIncentivePlansDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#StockBasedCompensationDetailedInformationRegardingActiveStockIncentivePlansDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/StockBasedCompensationDetailedInformationRegardingActiveStockIncentivePlansDetails" xlink:type="extended" id="i079f938311974a84aa241345913c0896_StockBasedCompensationDetailedInformationRegardingActiveStockIncentivePlansDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ea4c8882-bf60-4f8d-a437-65656d333979" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_5004ffe3-f1a0-4c5a-84d4-d9e44388e045" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ea4c8882-bf60-4f8d-a437-65656d333979" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_5004ffe3-f1a0-4c5a-84d4-d9e44388e045" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_3d6b6c84-3490-4666-b6d4-fb40aa1aa84c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ea4c8882-bf60-4f8d-a437-65656d333979" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_3d6b6c84-3490-4666-b6d4-fb40aa1aa84c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsandEquityInstrumentsOtherThanOptionsOutstandingNumber_a8a8ac07-9071-44cc-942b-34e4c9f196ac" xlink:href="ueic-20211231.xsd#ueic_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsandEquityInstrumentsOtherThanOptionsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ea4c8882-bf60-4f8d-a437-65656d333979" xlink:to="loc_ueic_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsandEquityInstrumentsOtherThanOptionsOutstandingNumber_a8a8ac07-9071-44cc-942b-34e4c9f196ac" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_8ab797e1-ec2b-46fa-a61e-67ee7c2f04a9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ea4c8882-bf60-4f8d-a437-65656d333979" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_8ab797e1-ec2b-46fa-a61e-67ee7c2f04a9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_76700620-913d-4b84-b947-787ea2a7f6dc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ea4c8882-bf60-4f8d-a437-65656d333979" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_76700620-913d-4b84-b947-787ea2a7f6dc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_8c218256-f747-4523-abc1-9d065630806b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_76700620-913d-4b84-b947-787ea2a7f6dc" xlink:to="loc_us-gaap_PlanNameAxis_8c218256-f747-4523-abc1-9d065630806b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_8c218256-f747-4523-abc1-9d065630806b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_8c218256-f747-4523-abc1-9d065630806b" xlink:to="loc_us-gaap_PlanNameDomain_8c218256-f747-4523-abc1-9d065630806b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_880c5776-fe89-40d2-a74c-d8e052a90388" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_8c218256-f747-4523-abc1-9d065630806b" xlink:to="loc_us-gaap_PlanNameDomain_880c5776-fe89-40d2-a74c-d8e052a90388" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockIncentivePlan2003Member_5c97303b-1893-4cd0-a8da-4457e6e71d2c" xlink:href="ueic-20211231.xsd#ueic_StockIncentivePlan2003Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_880c5776-fe89-40d2-a74c-d8e052a90388" xlink:to="loc_ueic_StockIncentivePlan2003Member_5c97303b-1893-4cd0-a8da-4457e6e71d2c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockIncentivePlan2006Member_d1ba09ec-0154-4a6f-ba3a-e62cd754bdc4" xlink:href="ueic-20211231.xsd#ueic_StockIncentivePlan2006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_880c5776-fe89-40d2-a74c-d8e052a90388" xlink:to="loc_ueic_StockIncentivePlan2006Member_d1ba09ec-0154-4a6f-ba3a-e62cd754bdc4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockIncentivePlan2010Member_30790563-222c-4bde-8954-06f3f5c99545" xlink:href="ueic-20211231.xsd#ueic_StockIncentivePlan2010Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_880c5776-fe89-40d2-a74c-d8e052a90388" xlink:to="loc_ueic_StockIncentivePlan2010Member_30790563-222c-4bde-8954-06f3f5c99545" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockIncentivePlan2014Member_faaee615-f1f7-44c5-868c-bd1d6d2a35cb" xlink:href="ueic-20211231.xsd#ueic_StockIncentivePlan2014Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_880c5776-fe89-40d2-a74c-d8e052a90388" xlink:to="loc_ueic_StockIncentivePlan2014Member_faaee615-f1f7-44c5-868c-bd1d6d2a35cb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockIncentivePlan2018Member_87148187-695c-474c-b749-895b15b1db7f" xlink:href="ueic-20211231.xsd#ueic_StockIncentivePlan2018Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_880c5776-fe89-40d2-a74c-d8e052a90388" xlink:to="loc_ueic_StockIncentivePlan2018Member_87148187-695c-474c-b749-895b15b1db7f" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsNarrativeDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#PerformanceBasedCommonStockWarrantsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsNarrativeDetails" xlink:type="extended" id="i68351e04d5e247e8996256b7c7655db4_PerformanceBasedCommonStockWarrantsNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_b5f544fe-c691-47d7-8fc5-21883df3eeca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_b5f544fe-c691-47d7-8fc5-21883df3eeca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_65f3110e-1fdf-4ef7-8a93-53652805fcc3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_65f3110e-1fdf-4ef7-8a93-53652805fcc3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofVestingPeriods_6934b9a4-2f4a-4c24-aadb-3161bbf7fc6c" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofVestingPeriods"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_ueic_ClassofWarrantorRightNumberofVestingPeriods_6934b9a4-2f4a-4c24-aadb-3161bbf7fc6c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightTermofSuccessiveVestingPeriods_9173e7a3-ef4f-4127-b357-c8f2c034739b" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightTermofSuccessiveVestingPeriods"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_ueic_ClassofWarrantorRightTermofSuccessiveVestingPeriods_9173e7a3-ef4f-4127-b357-c8f2c034739b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightVestingPeriodOne_46400b9e-bc6c-4321-b2e8-bffaadb1138f" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightVestingPeriodOne"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_ueic_ClassofWarrantorRightVestingPeriodOne_46400b9e-bc6c-4321-b2e8-bffaadb1138f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelOneAmount_603de3ca-0603-4515-8ccb-a73873dcbe67" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightSupplyThresholdLevelOneAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelOneAmount_603de3ca-0603-4515-8ccb-a73873dcbe67" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelThreeAmount_66576695-484d-4bbf-93c7-2d4074a84131" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightSupplyThresholdLevelThreeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelThreeAmount_66576695-484d-4bbf-93c7-2d4074a84131" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightVestedWarrants_6d6b0649-894f-4eee-ac79-c9fadad3dd7d" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightVestedWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_ueic_ClassofWarrantorRightVestedWarrants_6d6b0649-894f-4eee-ac79-c9fadad3dd7d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassOfWarrantOrRightMaximumNumberOfWarrantsAvailableForVestingInPeriod_89602a61-b076-4bda-b395-d18a0e08b9c7" xlink:href="ueic-20211231.xsd#ueic_ClassOfWarrantOrRightMaximumNumberOfWarrantsAvailableForVestingInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_ueic_ClassOfWarrantOrRightMaximumNumberOfWarrantsAvailableForVestingInPeriod_89602a61-b076-4bda-b395-d18a0e08b9c7" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightVestedWarrantsOutstanding_91c64bde-ba02-4089-a696-0a0e9b33b8b1" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightVestedWarrantsOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_ueic_ClassofWarrantorRightVestedWarrantsOutstanding_91c64bde-ba02-4089-a696-0a0e9b33b8b1" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_6ddeb513-fb3f-48be-b65b-95ff46f42386" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_003e035d-f0c3-485e-b8c9-4fc0b669419a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_6ddeb513-fb3f-48be-b65b-95ff46f42386" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_933eaae6-b31c-4f64-bb00-06bcdfab163b" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_6ddeb513-fb3f-48be-b65b-95ff46f42386" xlink:to="loc_dei_LegalEntityAxis_933eaae6-b31c-4f64-bb00-06bcdfab163b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_933eaae6-b31c-4f64-bb00-06bcdfab163b_default" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_933eaae6-b31c-4f64-bb00-06bcdfab163b" xlink:to="loc_dei_EntityDomain_933eaae6-b31c-4f64-bb00-06bcdfab163b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_6c7a5e91-a935-4b5e-b229-94ffb0745319" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_933eaae6-b31c-4f64-bb00-06bcdfab163b" xlink:to="loc_dei_EntityDomain_6c7a5e91-a935-4b5e-b229-94ffb0745319" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ComcastCorporationMember_562cff18-0c46-4a89-a27f-56509835031b" xlink:href="ueic-20211231.xsd#ueic_ComcastCorporationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_6c7a5e91-a935-4b5e-b229-94ffb0745319" xlink:to="loc_ueic_ComcastCorporationMember_562cff18-0c46-4a89-a27f-56509835031b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_3a32f33e-493b-4c38-9cd8-f64e343c9ee2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_6ddeb513-fb3f-48be-b65b-95ff46f42386" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_3a32f33e-493b-4c38-9cd8-f64e343c9ee2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_3a32f33e-493b-4c38-9cd8-f64e343c9ee2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_3a32f33e-493b-4c38-9cd8-f64e343c9ee2" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_3a32f33e-493b-4c38-9cd8-f64e343c9ee2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_7627905f-154c-46a7-9d9c-b0d001c48816" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_3a32f33e-493b-4c38-9cd8-f64e343c9ee2" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_7627905f-154c-46a7-9d9c-b0d001c48816" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_7336960c-11c5-4cc5-a4e0-b1561524638d" xlink:href="ueic-20211231.xsd#ueic_CommonStockPurchaseWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_7627905f-154c-46a7-9d9c-b0d001c48816" xlink:to="loc_ueic_CommonStockPurchaseWarrantMember_7336960c-11c5-4cc5-a4e0-b1561524638d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplyCommitmentAxis_8e8ac9f0-6eed-402d-b400-a9ae9f9ed1e4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplyCommitmentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_6ddeb513-fb3f-48be-b65b-95ff46f42386" xlink:to="loc_us-gaap_SupplyCommitmentAxis_8e8ac9f0-6eed-402d-b400-a9ae9f9ed1e4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplyCommitmentArrangementMember_8e8ac9f0-6eed-402d-b400-a9ae9f9ed1e4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplyCommitmentArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SupplyCommitmentAxis_8e8ac9f0-6eed-402d-b400-a9ae9f9ed1e4" xlink:to="loc_us-gaap_SupplyCommitmentArrangementMember_8e8ac9f0-6eed-402d-b400-a9ae9f9ed1e4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplyCommitmentArrangementMember_8875be3b-0f61-4e2c-aaee-5ccd88167b5b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplyCommitmentArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SupplyCommitmentAxis_8e8ac9f0-6eed-402d-b400-a9ae9f9ed1e4" xlink:to="loc_us-gaap_SupplyCommitmentArrangementMember_8875be3b-0f61-4e2c-aaee-5ccd88167b5b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplyCommitmentMember_7ab1c8a0-243e-4982-be5a-1ca489403e7b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplyCommitmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplyCommitmentArrangementMember_8875be3b-0f61-4e2c-aaee-5ccd88167b5b" xlink:to="loc_us-gaap_SupplyCommitmentMember_7ab1c8a0-243e-4982-be5a-1ca489403e7b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsPurchaseLevelandNumberofWarrantstoVestDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#PerformanceBasedCommonStockWarrantsPurchaseLevelandNumberofWarrantstoVestDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsPurchaseLevelandNumberofWarrantstoVestDetails" xlink:type="extended" id="ia03d5d1c1afc4e899cf397bccc298909_PerformanceBasedCommonStockWarrantsPurchaseLevelandNumberofWarrantstoVestDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_1e2864c0-dd69-4fd0-8c73-9511a0921ce9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelOneAmount_31d28f10-1f00-4c60-afbc-95e0fcf998fe" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightSupplyThresholdLevelOneAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_1e2864c0-dd69-4fd0-8c73-9511a0921ce9" xlink:to="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelOneAmount_31d28f10-1f00-4c60-afbc-95e0fcf998fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelTwoAmount_7bee6413-396d-478f-af15-4fe677abf36f" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightSupplyThresholdLevelTwoAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_1e2864c0-dd69-4fd0-8c73-9511a0921ce9" xlink:to="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelTwoAmount_7bee6413-396d-478f-af15-4fe677abf36f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelThreeAmount_7fb91ede-e09c-4611-8808-cc7bb7122381" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightSupplyThresholdLevelThreeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_1e2864c0-dd69-4fd0-8c73-9511a0921ce9" xlink:to="loc_ueic_ClassofWarrantorRightSupplyThresholdLevelThreeAmount_7fb91ede-e09c-4611-8808-cc7bb7122381" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassOfWarrantOrRightVestingPeriodOneSupplyThresholdLevelOneAbstract_46f2a1e1-9c38-476f-a14b-1563014e67e4" xlink:href="ueic-20211231.xsd#ueic_ClassOfWarrantOrRightVestingPeriodOneSupplyThresholdLevelOneAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_1e2864c0-dd69-4fd0-8c73-9511a0921ce9" xlink:to="loc_ueic_ClassOfWarrantOrRightVestingPeriodOneSupplyThresholdLevelOneAbstract_46f2a1e1-9c38-476f-a14b-1563014e67e4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelOne_2f75dc2a-fa35-4cf0-8c16-e0ee03587b1b" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelOne"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodOneSupplyThresholdLevelOneAbstract_46f2a1e1-9c38-476f-a14b-1563014e67e4" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelOne_2f75dc2a-fa35-4cf0-8c16-e0ee03587b1b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelTwo_a73bc87d-799c-4e25-b947-1e90bcde2dab" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodOneSupplyThresholdLevelOneAbstract_46f2a1e1-9c38-476f-a14b-1563014e67e4" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelTwo_a73bc87d-799c-4e25-b947-1e90bcde2dab" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelThree_16be74e9-d4c9-4961-9831-1f703971c01b" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodOneSupplyThresholdLevelOneAbstract_46f2a1e1-9c38-476f-a14b-1563014e67e4" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOneSupplyThresholdLevelThree_16be74e9-d4c9-4961-9831-1f703971c01b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOne_d0e0619c-5fac-4769-b1a6-e6980a2103fc" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOne"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodOneSupplyThresholdLevelOneAbstract_46f2a1e1-9c38-476f-a14b-1563014e67e4" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodOne_d0e0619c-5fac-4769-b1a6-e6980a2103fc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassOfWarrantOrRightVestingPeriodTwoAbstract_eca6c2c3-774f-4c4c-bb59-29c2da365478" xlink:href="ueic-20211231.xsd#ueic_ClassOfWarrantOrRightVestingPeriodTwoAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_1e2864c0-dd69-4fd0-8c73-9511a0921ce9" xlink:to="loc_ueic_ClassOfWarrantOrRightVestingPeriodTwoAbstract_eca6c2c3-774f-4c4c-bb59-29c2da365478" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelOne_72b55263-da34-4fac-b47f-3d1bb4008f3d" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelOne"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodTwoAbstract_eca6c2c3-774f-4c4c-bb59-29c2da365478" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelOne_72b55263-da34-4fac-b47f-3d1bb4008f3d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelTwo_0fa24fb2-6363-4d5d-8919-caf6e93747c4" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodTwoAbstract_eca6c2c3-774f-4c4c-bb59-29c2da365478" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelTwo_0fa24fb2-6363-4d5d-8919-caf6e93747c4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelThree_8d0ff245-1adb-446a-a1e8-9c74354d1128" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodTwoAbstract_eca6c2c3-774f-4c4c-bb59-29c2da365478" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwoSupplyThresholdLevelThree_8d0ff245-1adb-446a-a1e8-9c74354d1128" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwo_a851b8da-5899-4235-b6cf-daf489d1bd17" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodTwoAbstract_eca6c2c3-774f-4c4c-bb59-29c2da365478" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodTwo_a851b8da-5899-4235-b6cf-daf489d1bd17" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassOfWarrantOrRightVestingPeriodThreeAbstract_75e93bde-2bad-49b7-acd1-957718ec0461" xlink:href="ueic-20211231.xsd#ueic_ClassOfWarrantOrRightVestingPeriodThreeAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_1e2864c0-dd69-4fd0-8c73-9511a0921ce9" xlink:to="loc_ueic_ClassOfWarrantOrRightVestingPeriodThreeAbstract_75e93bde-2bad-49b7-acd1-957718ec0461" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelOne_20ac2f13-d8eb-4901-a1ef-c722e9f7ea0a" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelOne"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodThreeAbstract_75e93bde-2bad-49b7-acd1-957718ec0461" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelOne_20ac2f13-d8eb-4901-a1ef-c722e9f7ea0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelTwo_d4211330-7c12-4758-9ecf-ae8a96af3c1c" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodThreeAbstract_75e93bde-2bad-49b7-acd1-957718ec0461" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelTwo_d4211330-7c12-4758-9ecf-ae8a96af3c1c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelThree_4509ec7c-0a33-44e5-9856-0328119384b2" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodThreeAbstract_75e93bde-2bad-49b7-acd1-957718ec0461" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThreeSupplyThresholdLevelThree_4509ec7c-0a33-44e5-9856-0328119384b2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThree_4ac4a980-4922-4e8c-bbf2-a8a8f1eadc6e" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ClassOfWarrantOrRightVestingPeriodThreeAbstract_75e93bde-2bad-49b7-acd1-957718ec0461" xlink:to="loc_ueic_ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRightVestingPeriodThree_4ac4a980-4922-4e8c-bbf2-a8a8f1eadc6e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_efdde695-c13f-463a-b65c-1e39c0858dd2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_1e2864c0-dd69-4fd0-8c73-9511a0921ce9" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_efdde695-c13f-463a-b65c-1e39c0858dd2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_b2afd9f7-814a-43ae-891a-912c0278419e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_efdde695-c13f-463a-b65c-1e39c0858dd2" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_b2afd9f7-814a-43ae-891a-912c0278419e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_b2afd9f7-814a-43ae-891a-912c0278419e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_b2afd9f7-814a-43ae-891a-912c0278419e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_b2afd9f7-814a-43ae-891a-912c0278419e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_643d05b9-c8c0-4ddd-89f6-b8c241c0f04b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_b2afd9f7-814a-43ae-891a-912c0278419e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_643d05b9-c8c0-4ddd-89f6-b8c241c0f04b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_5f0d4ac4-b18a-409a-a2f7-eaa8c5571053" xlink:href="ueic-20211231.xsd#ueic_CommonStockPurchaseWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_643d05b9-c8c0-4ddd-89f6-b8c241c0f04b" xlink:to="loc_ueic_CommonStockPurchaseWarrantMember_5f0d4ac4-b18a-409a-a2f7-eaa8c5571053" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplyCommitmentAxis_6b7e4e59-98de-4782-a63c-7985c77a9cb4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplyCommitmentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_efdde695-c13f-463a-b65c-1e39c0858dd2" xlink:to="loc_us-gaap_SupplyCommitmentAxis_6b7e4e59-98de-4782-a63c-7985c77a9cb4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplyCommitmentArrangementMember_6b7e4e59-98de-4782-a63c-7985c77a9cb4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplyCommitmentArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SupplyCommitmentAxis_6b7e4e59-98de-4782-a63c-7985c77a9cb4" xlink:to="loc_us-gaap_SupplyCommitmentArrangementMember_6b7e4e59-98de-4782-a63c-7985c77a9cb4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplyCommitmentArrangementMember_c13ea1ae-fdfe-4b40-8059-ad3e41792fc4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplyCommitmentArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SupplyCommitmentAxis_6b7e4e59-98de-4782-a63c-7985c77a9cb4" xlink:to="loc_us-gaap_SupplyCommitmentArrangementMember_c13ea1ae-fdfe-4b40-8059-ad3e41792fc4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplyCommitmentMember_3a785a84-40a0-4894-8691-163855b480cf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplyCommitmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplyCommitmentArrangementMember_c13ea1ae-fdfe-4b40-8059-ad3e41792fc4" xlink:to="loc_us-gaap_SupplyCommitmentMember_3a785a84-40a0-4894-8691-163855b480cf" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsAssumptionsUsedinValuationandWeightedAverageFairValueofWarrantsDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#PerformanceBasedCommonStockWarrantsAssumptionsUsedinValuationandWeightedAverageFairValueofWarrantsDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsAssumptionsUsedinValuationandWeightedAverageFairValueofWarrantsDetails" xlink:type="extended" id="i07eb7492a308432a9f01b6fd4bc6d5f6_PerformanceBasedCommonStockWarrantsAssumptionsUsedinValuationandWeightedAverageFairValueofWarrantsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_5a6410bd-c4f2-44a9-9eb7-f5c241d37798" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightFairValue_b2813266-06c4-42a0-9b70-c4338ed5467b" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_5a6410bd-c4f2-44a9-9eb7-f5c241d37798" xlink:to="loc_ueic_ClassofWarrantorRightFairValue_b2813266-06c4-42a0-9b70-c4338ed5467b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharePrice_6bc8901b-c532-452b-aea1-ae3f5824ed14" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_5a6410bd-c4f2-44a9-9eb7-f5c241d37798" xlink:to="loc_us-gaap_SharePrice_6bc8901b-c532-452b-aea1-ae3f5824ed14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_76dc125f-4c22-4cb3-ad08-f937217b713d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_5a6410bd-c4f2-44a9-9eb7-f5c241d37798" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_76dc125f-4c22-4cb3-ad08-f937217b713d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_be4c1ae4-4af2-4459-876d-b4c7dff2a791" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_5a6410bd-c4f2-44a9-9eb7-f5c241d37798" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_be4c1ae4-4af2-4459-876d-b4c7dff2a791" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_37ec14ae-75bb-4199-9373-63c042ee3aab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_5a6410bd-c4f2-44a9-9eb7-f5c241d37798" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_37ec14ae-75bb-4199-9373-63c042ee3aab" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_92dc96d6-a906-401c-bad9-a3de2152ee66" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_37ec14ae-75bb-4199-9373-63c042ee3aab" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_92dc96d6-a906-401c-bad9-a3de2152ee66" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_92dc96d6-a906-401c-bad9-a3de2152ee66_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_92dc96d6-a906-401c-bad9-a3de2152ee66" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_92dc96d6-a906-401c-bad9-a3de2152ee66_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_6d53d3b4-2303-49cb-88b7-1feec1c92100" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_92dc96d6-a906-401c-bad9-a3de2152ee66" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_6d53d3b4-2303-49cb-88b7-1feec1c92100" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_6cbca1cc-0202-4c56-a1b0-e059e9335385" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_6d53d3b4-2303-49cb-88b7-1feec1c92100" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_6cbca1cc-0202-4c56-a1b0-e059e9335385" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputPriceVolatilityMember_55d3e9a3-dfa8-4886-a364-a8710ef03077" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputPriceVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_6d53d3b4-2303-49cb-88b7-1feec1c92100" xlink:to="loc_us-gaap_MeasurementInputPriceVolatilityMember_55d3e9a3-dfa8-4886-a364-a8710ef03077" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedTermMember_0b8beac5-990c-46dc-b7d6-ecf16decd6da" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputExpectedTermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_6d53d3b4-2303-49cb-88b7-1feec1c92100" xlink:to="loc_us-gaap_MeasurementInputExpectedTermMember_0b8beac5-990c-46dc-b7d6-ecf16decd6da" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_41a51c19-b0e8-4a50-a0f4-2f45a740aa98" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_37ec14ae-75bb-4199-9373-63c042ee3aab" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_41a51c19-b0e8-4a50-a0f4-2f45a740aa98" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_41a51c19-b0e8-4a50-a0f4-2f45a740aa98_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_41a51c19-b0e8-4a50-a0f4-2f45a740aa98" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_41a51c19-b0e8-4a50-a0f4-2f45a740aa98_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_c519975a-c385-41c5-acd4-1542f6561bc1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_41a51c19-b0e8-4a50-a0f4-2f45a740aa98" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_c519975a-c385-41c5-acd4-1542f6561bc1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_5594dca8-331d-4faa-8162-65c98d50d207" xlink:href="ueic-20211231.xsd#ueic_CommonStockPurchaseWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_c519975a-c385-41c5-acd4-1542f6561bc1" xlink:to="loc_ueic_CommonStockPurchaseWarrantMember_5594dca8-331d-4faa-8162-65c98d50d207" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsImpacttoNetSalesinConnectionwithWarrantsandRelatedIncomeTaxBenefitDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#PerformanceBasedCommonStockWarrantsImpacttoNetSalesinConnectionwithWarrantsandRelatedIncomeTaxBenefitDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsImpacttoNetSalesinConnectionwithWarrantsandRelatedIncomeTaxBenefitDetails" xlink:type="extended" id="i2b3ed5f638dc48bcb7ea902073d9cefc_PerformanceBasedCommonStockWarrantsImpacttoNetSalesinConnectionwithWarrantsandRelatedIncomeTaxBenefitDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_c440d2bb-b996-45d5-8fb0-44e72d603b07" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightContraRevenue_aa9fc1cc-b35c-4e71-8810-e16fa6710f75" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightContraRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_c440d2bb-b996-45d5-8fb0-44e72d603b07" xlink:to="loc_ueic_ClassofWarrantorRightContraRevenue_aa9fc1cc-b35c-4e71-8810-e16fa6710f75" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightIncomeTaxExpenseBenefit_5d86f42c-a251-4b10-9342-4f852662e52a" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightIncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_c440d2bb-b996-45d5-8fb0-44e72d603b07" xlink:to="loc_ueic_ClassofWarrantorRightIncomeTaxExpenseBenefit_5d86f42c-a251-4b10-9342-4f852662e52a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightNumberofVestingPeriods_a891ea5e-a9da-445b-a8e5-4a2600f78119" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightNumberofVestingPeriods"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_c440d2bb-b996-45d5-8fb0-44e72d603b07" xlink:to="loc_ueic_ClassofWarrantorRightNumberofVestingPeriods_a891ea5e-a9da-445b-a8e5-4a2600f78119" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightTermofSuccessiveVestingPeriods_cbb61e75-b6ee-4a2b-a1ea-67c7006ece50" xlink:href="ueic-20211231.xsd#ueic_ClassofWarrantorRightTermofSuccessiveVestingPeriods"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_c440d2bb-b996-45d5-8fb0-44e72d603b07" xlink:to="loc_ueic_ClassofWarrantorRightTermofSuccessiveVestingPeriods_cbb61e75-b6ee-4a2b-a1ea-67c7006ece50" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_9aa17ede-949f-4026-b20a-015f96937efa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_c440d2bb-b996-45d5-8fb0-44e72d603b07" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_9aa17ede-949f-4026-b20a-015f96937efa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_57018880-f5db-41b4-b01e-588d1f0e050a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_9aa17ede-949f-4026-b20a-015f96937efa" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_57018880-f5db-41b4-b01e-588d1f0e050a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_57018880-f5db-41b4-b01e-588d1f0e050a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_57018880-f5db-41b4-b01e-588d1f0e050a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_57018880-f5db-41b4-b01e-588d1f0e050a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_5c78fcdd-85e8-480c-8fb4-adfe3de79083" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_57018880-f5db-41b4-b01e-588d1f0e050a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_5c78fcdd-85e8-480c-8fb4-adfe3de79083" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_b067bd38-14eb-4917-87ca-ddbcac7c973f" xlink:href="ueic-20211231.xsd#ueic_CommonStockPurchaseWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_5c78fcdd-85e8-480c-8fb4-adfe3de79083" xlink:to="loc_ueic_CommonStockPurchaseWarrantMember_b067bd38-14eb-4917-87ca-ddbcac7c973f" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/OtherIncomeExpenseNetandLossonSaleofArgentinaSubsidiaryDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#OtherIncomeExpenseNetandLossonSaleofArgentinaSubsidiaryDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/OtherIncomeExpenseNetandLossonSaleofArgentinaSubsidiaryDetails" xlink:type="extended" id="i313d6c3681074b26b733cd0ebdb5a303_OtherIncomeExpenseNetandLossonSaleofArgentinaSubsidiaryDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_c4d601a2-7bd6-4c9b-ae18-167d6578e71b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_d114c104-1e4c-499c-8682-dbaac1b8acc9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_c4d601a2-7bd6-4c9b-ae18-167d6578e71b" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_d114c104-1e4c-499c-8682-dbaac1b8acc9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_44105fdd-d342-4f27-a408-900d3b31a456" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_c4d601a2-7bd6-4c9b-ae18-167d6578e71b" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_44105fdd-d342-4f27-a408-900d3b31a456" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_OtherIncomeExpense_bdbcc83a-8b84-4bfb-8364-4f2893eca70f" xlink:href="ueic-20211231.xsd#ueic_OtherIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_c4d601a2-7bd6-4c9b-ae18-167d6578e71b" xlink:to="loc_ueic_OtherIncomeExpense_bdbcc83a-8b84-4bfb-8364-4f2893eca70f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_8c9c3c36-06e9-4b6d-9c3c-608876730007" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_c4d601a2-7bd6-4c9b-ae18-167d6578e71b" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_8c9c3c36-06e9-4b6d-9c3c-608876730007" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_4a7f7fb3-7c37-49f4-a37d-21b0106fb081" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_c4d601a2-7bd6-4c9b-ae18-167d6578e71b" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_4a7f7fb3-7c37-49f4-a37d-21b0106fb081" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_0a050319-679a-4e80-bd1d-93f51a760d08" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_c4d601a2-7bd6-4c9b-ae18-167d6578e71b" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_0a050319-679a-4e80-bd1d-93f51a760d08" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_cf09c104-b212-4b3d-892b-bba5981cf71a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_0a050319-679a-4e80-bd1d-93f51a760d08" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_cf09c104-b212-4b3d-892b-bba5981cf71a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_cf09c104-b212-4b3d-892b-bba5981cf71a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_cf09c104-b212-4b3d-892b-bba5981cf71a" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_cf09c104-b212-4b3d-892b-bba5981cf71a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_43f55f55-581e-4adc-b310-3ee3723e3ac8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_cf09c104-b212-4b3d-892b-bba5981cf71a" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_43f55f55-581e-4adc-b310-3ee3723e3ac8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_OneForAllArgentinaSRLMember_8441e46e-63d8-44fb-8efd-c91a841f1f8a" xlink:href="ueic-20211231.xsd#ueic_OneForAllArgentinaSRLMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_43f55f55-581e-4adc-b310-3ee3723e3ac8" xlink:to="loc_ueic_OneForAllArgentinaSRLMember_8441e46e-63d8-44fb-8efd-c91a841f1f8a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/EarningsPerShareSecuritiesExcludedfromtheComputationofDilutedEarningsLossPerCommonShareDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#EarningsPerShareSecuritiesExcludedfromtheComputationofDilutedEarningsLossPerCommonShareDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/EarningsPerShareSecuritiesExcludedfromtheComputationofDilutedEarningsLossPerCommonShareDetails" xlink:type="extended" id="ic53ef9c5aa5b4331b5519a6cd0578fa8_EarningsPerShareSecuritiesExcludedfromtheComputationofDilutedEarningsLossPerCommonShareDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_42921474-8176-4937-b06c-c5a582fd957e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_68a13c2f-68f9-4e86-8a20-3c0f48605b6a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_42921474-8176-4937-b06c-c5a582fd957e" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_68a13c2f-68f9-4e86-8a20-3c0f48605b6a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7299a2de-439f-4498-b31b-1ccb649f92c5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_42921474-8176-4937-b06c-c5a582fd957e" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7299a2de-439f-4498-b31b-1ccb649f92c5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_e5318395-f199-434c-9b20-d91328af5ab3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7299a2de-439f-4498-b31b-1ccb649f92c5" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_e5318395-f199-434c-9b20-d91328af5ab3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_e5318395-f199-434c-9b20-d91328af5ab3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_e5318395-f199-434c-9b20-d91328af5ab3" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_e5318395-f199-434c-9b20-d91328af5ab3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_8ac2c2d8-f2fc-4b76-8dc3-67014777a61a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_e5318395-f199-434c-9b20-d91328af5ab3" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_8ac2c2d8-f2fc-4b76-8dc3-67014777a61a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_7e2c98e6-c216-40f2-bbf1-ef7dab9b6e4b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_8ac2c2d8-f2fc-4b76-8dc3-67014777a61a" xlink:to="loc_us-gaap_EmployeeStockOptionMember_7e2c98e6-c216-40f2-bbf1-ef7dab9b6e4b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_f1d9072f-4cdc-4729-9129-d62c8afc8d9e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_8ac2c2d8-f2fc-4b76-8dc3-67014777a61a" xlink:to="loc_us-gaap_RestrictedStockMember_f1d9072f-4cdc-4729-9129-d62c8afc8d9e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_30f484e7-7245-4edb-b714-4be83e8e9dcf" xlink:href="ueic-20211231.xsd#ueic_CommonStockPurchaseWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_8ac2c2d8-f2fc-4b76-8dc3-67014777a61a" xlink:to="loc_ueic_CommonStockPurchaseWarrantMember_30f484e7-7245-4edb-b714-4be83e8e9dcf" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/DerivativesTotalNetFairValueofDerivativesDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#DerivativesTotalNetFairValueofDerivativesDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/DerivativesTotalNetFairValueofDerivativesDetails" xlink:type="extended" id="if9dbeee0c03a4c27bc477ee50bcbb4e3_DerivativesTotalNetFairValueofDerivativesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_d56ac921-7716-435c-af64-4eb3669afc53" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativesFairValueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeNet_6ea633f7-460a-4be3-b85d-23118c17c0b9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_d56ac921-7716-435c-af64-4eb3669afc53" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeNet_6ea633f7-460a-4be3-b85d-23118c17c0b9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_45d8eed3-c919-476a-824b-537f02e6f3a7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_d56ac921-7716-435c-af64-4eb3669afc53" xlink:to="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_45d8eed3-c919-476a-824b-537f02e6f3a7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_bb58b001-4621-4515-a902-dfc9ba2d6873" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_45d8eed3-c919-476a-824b-537f02e6f3a7" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_bb58b001-4621-4515-a902-dfc9ba2d6873" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_bb58b001-4621-4515-a902-dfc9ba2d6873_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_bb58b001-4621-4515-a902-dfc9ba2d6873" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_bb58b001-4621-4515-a902-dfc9ba2d6873_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_fdaea773-7a5d-4757-966f-2610688606b0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_bb58b001-4621-4515-a902-dfc9ba2d6873" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_fdaea773-7a5d-4757-966f-2610688606b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_b615563d-f433-4d6e-bfac-bc5195ca6cda" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_fdaea773-7a5d-4757-966f-2610688606b0" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_b615563d-f433-4d6e-bfac-bc5195ca6cda" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_255f4fff-ac82-4d90-a99b-f3222efcb094" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_45d8eed3-c919-476a-824b-537f02e6f3a7" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_255f4fff-ac82-4d90-a99b-f3222efcb094" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_255f4fff-ac82-4d90-a99b-f3222efcb094_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_255f4fff-ac82-4d90-a99b-f3222efcb094" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_255f4fff-ac82-4d90-a99b-f3222efcb094_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_5fc1afbf-72ed-4a63-841a-5779ac375328" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_255f4fff-ac82-4d90-a99b-f3222efcb094" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_5fc1afbf-72ed-4a63-841a-5779ac375328" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_a37a4397-336e-44e3-9201-fc65215b949a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_5fc1afbf-72ed-4a63-841a-5779ac375328" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_a37a4397-336e-44e3-9201-fc65215b949a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_f7200590-f083-44f8-8044-328ae4b7e6fd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_45d8eed3-c919-476a-824b-537f02e6f3a7" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_f7200590-f083-44f8-8044-328ae4b7e6fd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f7200590-f083-44f8-8044-328ae4b7e6fd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_f7200590-f083-44f8-8044-328ae4b7e6fd" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f7200590-f083-44f8-8044-328ae4b7e6fd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f34a474a-d106-4e7c-ab1d-f6b0a11d6433" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_f7200590-f083-44f8-8044-328ae4b7e6fd" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f34a474a-d106-4e7c-ab1d-f6b0a11d6433" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_1e237158-31cd-40ac-8e37-c1a39c2bcb1d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f34a474a-d106-4e7c-ab1d-f6b0a11d6433" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_1e237158-31cd-40ac-8e37-c1a39c2bcb1d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_ea3a66b3-42ec-4df4-86a2-7f807a8525a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f34a474a-d106-4e7c-ab1d-f6b0a11d6433" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_ea3a66b3-42ec-4df4-86a2-7f807a8525a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_d8f8c65f-3612-4c58-906e-55631586759d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f34a474a-d106-4e7c-ab1d-f6b0a11d6433" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_d8f8c65f-3612-4c58-906e-55631586759d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_8d650aac-3678-4917-93cf-eb159af9488f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_45d8eed3-c919-476a-824b-537f02e6f3a7" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_8d650aac-3678-4917-93cf-eb159af9488f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_8d650aac-3678-4917-93cf-eb159af9488f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_8d650aac-3678-4917-93cf-eb159af9488f" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_8d650aac-3678-4917-93cf-eb159af9488f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_9d2986a7-922c-47b1-be7d-657a8849874b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_8d650aac-3678-4917-93cf-eb159af9488f" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_9d2986a7-922c-47b1-be7d-657a8849874b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_d7881e66-ba97-4d06-aba9-ad1ab5324ef7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_9d2986a7-922c-47b1-be7d-657a8849874b" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_d7881e66-ba97-4d06-aba9-ad1ab5324ef7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_f74ddafe-9321-48c8-9611-76bd3cb31007" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_d7881e66-ba97-4d06-aba9-ad1ab5324ef7" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_f74ddafe-9321-48c8-9611-76bd3cb31007" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_172ae79b-0dbf-47f0-91b4-b0065205e2e1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_45d8eed3-c919-476a-824b-537f02e6f3a7" xlink:to="loc_us-gaap_HedgingDesignationAxis_172ae79b-0dbf-47f0-91b4-b0065205e2e1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_172ae79b-0dbf-47f0-91b4-b0065205e2e1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_172ae79b-0dbf-47f0-91b4-b0065205e2e1" xlink:to="loc_us-gaap_HedgingDesignationDomain_172ae79b-0dbf-47f0-91b4-b0065205e2e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_513d32a9-bd34-4706-9b50-152af67d2000" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_172ae79b-0dbf-47f0-91b4-b0065205e2e1" xlink:to="loc_us-gaap_HedgingDesignationDomain_513d32a9-bd34-4706-9b50-152af67d2000" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_4c1306e7-4e04-445d-a254-ceee4dfa55c1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_513d32a9-bd34-4706-9b50-152af67d2000" xlink:to="loc_us-gaap_NondesignatedMember_4c1306e7-4e04-445d-a254-ceee4dfa55c1" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/DerivativesNarrativeDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#DerivativesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/DerivativesNarrativeDetails" xlink:type="extended" id="ie6805914f99e44b0b121743624963ab9_DerivativesNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_32217acb-0224-40b6-9cd1-ddb1a1a4bfdc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_a37217c5-749f-4242-8c6c-1ee76202342f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_32217acb-0224-40b6-9cd1-ddb1a1a4bfdc" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_a37217c5-749f-4242-8c6c-1ee76202342f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_492c04b9-268f-452c-bd58-99a02760090a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_32217acb-0224-40b6-9cd1-ddb1a1a4bfdc" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_492c04b9-268f-452c-bd58-99a02760090a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_8363386f-df2a-467f-bdf7-4cb1299a7424" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_492c04b9-268f-452c-bd58-99a02760090a" xlink:to="loc_us-gaap_HedgingDesignationAxis_8363386f-df2a-467f-bdf7-4cb1299a7424" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_8363386f-df2a-467f-bdf7-4cb1299a7424_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_8363386f-df2a-467f-bdf7-4cb1299a7424" xlink:to="loc_us-gaap_HedgingDesignationDomain_8363386f-df2a-467f-bdf7-4cb1299a7424_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_9d39692a-fa98-4b1c-ab0e-1d634ebcd952" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_8363386f-df2a-467f-bdf7-4cb1299a7424" xlink:to="loc_us-gaap_HedgingDesignationDomain_9d39692a-fa98-4b1c-ab0e-1d634ebcd952" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_3aaef129-8961-470f-9072-eb356ca62035" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_9d39692a-fa98-4b1c-ab0e-1d634ebcd952" xlink:to="loc_us-gaap_NondesignatedMember_3aaef129-8961-470f-9072-eb356ca62035" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_30f647f8-ec7e-480e-830e-1a42c51633a8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_492c04b9-268f-452c-bd58-99a02760090a" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_30f647f8-ec7e-480e-830e-1a42c51633a8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_30f647f8-ec7e-480e-830e-1a42c51633a8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_30f647f8-ec7e-480e-830e-1a42c51633a8" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_30f647f8-ec7e-480e-830e-1a42c51633a8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_4eca1b0f-89e7-4291-8295-18572ea11f39" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_30f647f8-ec7e-480e-830e-1a42c51633a8" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_4eca1b0f-89e7-4291-8295-18572ea11f39" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_28118966-e6c4-43c7-994c-6bff8dc3deb5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_4eca1b0f-89e7-4291-8295-18572ea11f39" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_28118966-e6c4-43c7-994c-6bff8dc3deb5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_edbcf66a-5f4c-4620-a5f9-41ffe0665505" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_492c04b9-268f-452c-bd58-99a02760090a" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_edbcf66a-5f4c-4620-a5f9-41ffe0665505" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_edbcf66a-5f4c-4620-a5f9-41ffe0665505_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_edbcf66a-5f4c-4620-a5f9-41ffe0665505" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_edbcf66a-5f4c-4620-a5f9-41ffe0665505_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_23230fca-2a55-4e74-b043-f02e4bf2fae1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_edbcf66a-5f4c-4620-a5f9-41ffe0665505" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_23230fca-2a55-4e74-b043-f02e4bf2fae1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpenseMember_5f7f6d05-b141-4f64-a2d7-23e2fd019216" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_23230fca-2a55-4e74-b043-f02e4bf2fae1" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpenseMember_5f7f6d05-b141-4f64-a2d7-23e2fd019216" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/DerivativesForeignCurrencyExchangeContractsDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#DerivativesForeignCurrencyExchangeContractsDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/DerivativesForeignCurrencyExchangeContractsDetails" xlink:type="extended" id="i5344e01564c742dab72e3adac15403e3_DerivativesForeignCurrencyExchangeContractsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_ab0a0f71-3481-48c3-9946-f818fd00f057" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_1c7a683f-1f48-47b4-bedd-1d3c4b9e6cd2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_ab0a0f71-3481-48c3-9946-f818fd00f057" xlink:to="loc_us-gaap_DerivativeNotionalAmount_1c7a683f-1f48-47b4-bedd-1d3c4b9e6cd2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeForwardExchangeRate1_c42fbc84-5bcb-44ed-aed8-cb8c161f595e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeForwardExchangeRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_ab0a0f71-3481-48c3-9946-f818fd00f057" xlink:to="loc_us-gaap_DerivativeForwardExchangeRate1_c42fbc84-5bcb-44ed-aed8-cb8c161f595e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_fff72e6c-36ac-47bc-bd0b-c98acebd60f8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_ab0a0f71-3481-48c3-9946-f818fd00f057" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_fff72e6c-36ac-47bc-bd0b-c98acebd60f8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_68649717-d95a-4e3f-bbb2-36fc309f00dc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_ab0a0f71-3481-48c3-9946-f818fd00f057" xlink:to="loc_us-gaap_DerivativeTable_68649717-d95a-4e3f-bbb2-36fc309f00dc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_f11cef53-2136-41db-9813-0d5ef39ce9b0" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_CurrencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_68649717-d95a-4e3f-bbb2-36fc309f00dc" xlink:to="loc_srt_CurrencyAxis_f11cef53-2136-41db-9813-0d5ef39ce9b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_f11cef53-2136-41db-9813-0d5ef39ce9b0_default" xlink:href="https://xbrl.sec.gov/currency/2021/currency-2021.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_f11cef53-2136-41db-9813-0d5ef39ce9b0" xlink:to="loc_currency_AllCurrenciesDomain_f11cef53-2136-41db-9813-0d5ef39ce9b0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_1c775df1-c0dc-490d-955f-2dc96b96d565" xlink:href="https://xbrl.sec.gov/currency/2021/currency-2021.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_f11cef53-2136-41db-9813-0d5ef39ce9b0" xlink:to="loc_currency_AllCurrenciesDomain_1c775df1-c0dc-490d-955f-2dc96b96d565" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_CNY_ffad8315-8fd9-42db-a8d4-398b3a27bf84" xlink:href="https://xbrl.sec.gov/currency/2021/currency-2021.xsd#currency_CNY"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_1c775df1-c0dc-490d-955f-2dc96b96d565" xlink:to="loc_currency_CNY_ffad8315-8fd9-42db-a8d4-398b3a27bf84" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_EUR_e04cbf19-c3ee-441f-be54-ee3cc2c65ebf" xlink:href="https://xbrl.sec.gov/currency/2021/currency-2021.xsd#currency_EUR"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_1c775df1-c0dc-490d-955f-2dc96b96d565" xlink:to="loc_currency_EUR_e04cbf19-c3ee-441f-be54-ee3cc2c65ebf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_BRL_dbc46282-f9d2-487b-bf2f-212ac9b7a74b" xlink:href="https://xbrl.sec.gov/currency/2021/currency-2021.xsd#currency_BRL"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_1c775df1-c0dc-490d-955f-2dc96b96d565" xlink:to="loc_currency_BRL_dbc46282-f9d2-487b-bf2f-212ac9b7a74b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_MXN_da9408e4-6181-44dc-a04d-de0d327c42da" xlink:href="https://xbrl.sec.gov/currency/2021/currency-2021.xsd#currency_MXN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_1c775df1-c0dc-490d-955f-2dc96b96d565" xlink:to="loc_currency_MXN_da9408e4-6181-44dc-a04d-de0d327c42da" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_a10b4466-e36b-41ef-a9ef-79a5e693e846" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_68649717-d95a-4e3f-bbb2-36fc309f00dc" xlink:to="loc_us-gaap_HedgingDesignationAxis_a10b4466-e36b-41ef-a9ef-79a5e693e846" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_a10b4466-e36b-41ef-a9ef-79a5e693e846_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_a10b4466-e36b-41ef-a9ef-79a5e693e846" xlink:to="loc_us-gaap_HedgingDesignationDomain_a10b4466-e36b-41ef-a9ef-79a5e693e846_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_fe36988a-7998-4fb8-96c0-cc9474cc168e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_a10b4466-e36b-41ef-a9ef-79a5e693e846" xlink:to="loc_us-gaap_HedgingDesignationDomain_fe36988a-7998-4fb8-96c0-cc9474cc168e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_8163100b-6ff4-435b-b2c1-1545560ab0f4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_fe36988a-7998-4fb8-96c0-cc9474cc168e" xlink:to="loc_us-gaap_NondesignatedMember_8163100b-6ff4-435b-b2c1-1545560ab0f4" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/SubsequentEventDetails" xlink:type="simple" xlink:href="ueic-20211231.xsd#SubsequentEventDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/SubsequentEventDetails" xlink:type="extended" id="iac3b2bcf8a624a39a99d542dabf654b1_SubsequentEventDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_8d345d66-4e8b-468f-819c-dff0b9ebc9dd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionConsiderationTransferred_ef639f11-e7e6-4fe8-b3b1-949ff7ec12ed" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetAcquisitionConsiderationTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_8d345d66-4e8b-468f-819c-dff0b9ebc9dd" xlink:to="loc_us-gaap_AssetAcquisitionConsiderationTransferred_ef639f11-e7e6-4fe8-b3b1-949ff7ec12ed" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_9848dd4a-c3f2-4c55-8332-381026072af0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_8d345d66-4e8b-468f-819c-dff0b9ebc9dd" xlink:to="loc_us-gaap_SubsequentEventTable_9848dd4a-c3f2-4c55-8332-381026072af0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_1faf4977-c6c7-4846-b2bc-43d73b1d5670" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_9848dd4a-c3f2-4c55-8332-381026072af0" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_1faf4977-c6c7-4846-b2bc-43d73b1d5670" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_1faf4977-c6c7-4846-b2bc-43d73b1d5670_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_1faf4977-c6c7-4846-b2bc-43d73b1d5670" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_1faf4977-c6c7-4846-b2bc-43d73b1d5670_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_076b8265-a9c9-49b4-a58f-900c874d52cf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_1faf4977-c6c7-4846-b2bc-43d73b1d5670" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_076b8265-a9c9-49b4-a58f-900c874d52cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_1dcf1a4f-01e0-43f7-84c0-d4f218fca780" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_076b8265-a9c9-49b4-a58f-900c874d52cf" xlink:to="loc_us-gaap_SubsequentEventMember_1dcf1a4f-01e0-43f7-84c0-d4f218fca780" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_7fed1a41-4ca7-47e4-929f-9a79e330f6d7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_9848dd4a-c3f2-4c55-8332-381026072af0" xlink:to="loc_us-gaap_AssetAcquisitionAxis_7fed1a41-4ca7-47e4-929f-9a79e330f6d7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_7fed1a41-4ca7-47e4-929f-9a79e330f6d7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_7fed1a41-4ca7-47e4-929f-9a79e330f6d7" xlink:to="loc_us-gaap_AssetAcquisitionDomain_7fed1a41-4ca7-47e4-929f-9a79e330f6d7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_0b2c2008-4bd4-4762-bdda-180923cfe9ae" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_7fed1a41-4ca7-47e4-929f-9a79e330f6d7" xlink:to="loc_us-gaap_AssetAcquisitionDomain_0b2c2008-4bd4-4762-bdda-180923cfe9ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_QtericsIncMember_f9869831-d970-41d8-8cf2-e23e1849b432" xlink:href="ueic-20211231.xsd#ueic_QtericsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_0b2c2008-4bd4-4762-bdda-180923cfe9ae" xlink:to="loc_ueic_QtericsIncMember_f9869831-d970-41d8-8cf2-e23e1849b432" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd#eedm"/>
  <link:definitionLink xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent" xlink:type="arc" order="0"/>
  </link:definitionLink>
</link:linkbase>
