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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2023 Workiva-->
<!--r:cc3f283a-1623-4543-9eea-7e186489ae5d,g:3875f894-5831-4458-b152-681d28351ff0-->
<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-20230630.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended" id="i573d95aa4f1e4a729363fe7e2bf2289e_CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_48bb5660-7c99-46b0-b5da-4870bf5bf986" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_48bb5660-7c99-46b0-b5da-4870bf5bf986" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_d2cdb4d9-5c1d-4c24-a7ce-b24df98a7a43" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_d2cdb4d9-5c1d-4c24-a7ce-b24df98a7a43" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2a9a7b9d-1fdf-4a74-b6a4-aedfb148dfa8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2a9a7b9d-1fdf-4a74-b6a4-aedfb148dfa8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_f93494f7-56f1-4734-8edb-cc099ee42f95" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_TreasuryStockCommonShares_f93494f7-56f1-4734-8edb-cc099ee42f95" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_c052c7ce-16cd-41ed-b23c-daaba0ba8b40" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_NetIncomeLoss_c052c7ce-16cd-41ed-b23c-daaba0ba8b40" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_2d8eb493-4be4-416f-b40b-8e01c5239315" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_2d8eb493-4be4-416f-b40b-8e01c5239315" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_c6360a1d-7ab1-4fa8-ad50-32e31e4315bc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_c6360a1d-7ab1-4fa8-ad50-32e31e4315bc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_1bc5521c-b3f2-4e2b-9b15-0fc3ee3bbf88" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_1bc5521c-b3f2-4e2b-9b15-0fc3ee3bbf88" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_589c3932-3fda-4777-b439-79a3114b2042" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_589c3932-3fda-4777-b439-79a3114b2042" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_80d27292-d42b-48f6-b0de-32708b1075ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_80d27292-d42b-48f6-b0de-32708b1075ad" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SharesIssuedToDirectorsShares_640f0763-a54f-49ed-af17-64f43186c6f1" xlink:href="ueic-20230630.xsd#ueic_SharesIssuedToDirectorsShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_ueic_SharesIssuedToDirectorsShares_640f0763-a54f-49ed-af17-64f43186c6f1" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SharesIssuedToDirectorsValue_d1ee7d0a-59d4-402f-ba78-af86de3be8cf" xlink:href="ueic-20230630.xsd#ueic_SharesIssuedToDirectorsValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_ueic_SharesIssuedToDirectorsValue_d1ee7d0a-59d4-402f-ba78-af86de3be8cf" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_37dcd8fe-5c1f-4b4a-acf1-302889a31d2a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_80989e5c-1ecb-4825-957d-9f43cf482d57" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_37dcd8fe-5c1f-4b4a-acf1-302889a31d2a" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_5ba70eb2-248f-4e8b-acf2-dcf1ed91f542" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_3dfcff34-3378-4d72-88c4-57a12ae060e5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_53ce82d3-02b4-4eeb-9559-77fc02992d56" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_2a58f491-c9d8-4719-9bc8-b1bf2b7dbc29" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_48bb5660-7c99-46b0-b5da-4870bf5bf986" xlink:to="loc_us-gaap_StatementTable_2a58f491-c9d8-4719-9bc8-b1bf2b7dbc29" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_2a4456a1-ed17-406c-b2b4-fcf32708d568" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_2a58f491-c9d8-4719-9bc8-b1bf2b7dbc29" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_2a4456a1-ed17-406c-b2b4-fcf32708d568" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_2a4456a1-ed17-406c-b2b4-fcf32708d568_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_2a4456a1-ed17-406c-b2b4-fcf32708d568" xlink:to="loc_us-gaap_EquityComponentDomain_2a4456a1-ed17-406c-b2b4-fcf32708d568_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_3b3ac62c-82c8-48d8-9af9-bad9bc76606b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_2a4456a1-ed17-406c-b2b4-fcf32708d568" xlink:to="loc_us-gaap_EquityComponentDomain_3b3ac62c-82c8-48d8-9af9-bad9bc76606b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_913ccbcb-1d07-4d74-ae63-f71d61ef4d8c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_3b3ac62c-82c8-48d8-9af9-bad9bc76606b" xlink:to="loc_us-gaap_CommonStockMember_913ccbcb-1d07-4d74-ae63-f71d61ef4d8c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_36d5b469-0b2b-4167-b517-39796932a44f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_3b3ac62c-82c8-48d8-9af9-bad9bc76606b" xlink:to="loc_us-gaap_TreasuryStockCommonMember_36d5b469-0b2b-4167-b517-39796932a44f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_b0fde297-c25f-4a1a-a384-8976e779899f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_3b3ac62c-82c8-48d8-9af9-bad9bc76606b" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_b0fde297-c25f-4a1a-a384-8976e779899f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_deafd35e-b9b2-49c0-a8a1-90f22f31197b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_3b3ac62c-82c8-48d8-9af9-bad9bc76606b" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_deafd35e-b9b2-49c0-a8a1-90f22f31197b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_1ca4ec02-32d1-496d-9ada-5a33529658c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_3b3ac62c-82c8-48d8-9af9-bad9bc76606b" xlink:to="loc_us-gaap_RetainedEarningsMember_1ca4ec02-32d1-496d-9ada-5a33529658c1" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/CashCashEquivalentsandTermDepositSummaryofGeographicAreaDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#CashCashEquivalentsandTermDepositSummaryofGeographicAreaDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/CashCashEquivalentsandTermDepositSummaryofGeographicAreaDetails" xlink:type="extended" id="i18aecacdf3714628969c08e4942bc436_CashCashEquivalentsandTermDepositSummaryofGeographicAreaDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsLineItems_46ce6524-49f8-458f-9d6b-b448f28715ab" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_5985fd8b-d0d5-4867-a532-4bcce37ff35b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_46ce6524-49f8-458f-9d6b-b448f28715ab" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_5985fd8b-d0d5-4867-a532-4bcce37ff35b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_bee4690c-1138-410a-aff4-3110f54c5c52" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_46ce6524-49f8-458f-9d6b-b448f28715ab" xlink:to="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_bee4690c-1138-410a-aff4-3110f54c5c52" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_a2acc778-efd9-494a-8704-80f89f79ec01" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_bee4690c-1138-410a-aff4-3110f54c5c52" xlink:to="loc_srt_StatementGeographicalAxis_a2acc778-efd9-494a-8704-80f89f79ec01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_a2acc778-efd9-494a-8704-80f89f79ec01_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_a2acc778-efd9-494a-8704-80f89f79ec01" xlink:to="loc_srt_SegmentGeographicalDomain_a2acc778-efd9-494a-8704-80f89f79ec01_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_017312b9-ab9e-4069-ac06-fd8bce9ed557" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_a2acc778-efd9-494a-8704-80f89f79ec01" xlink:to="loc_srt_SegmentGeographicalDomain_017312b9-ab9e-4069-ac06-fd8bce9ed557" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NorthAmericaMember_09ce5f0d-2caa-45a4-9850-9921f77ffc81" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NorthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_017312b9-ab9e-4069-ac06-fd8bce9ed557" xlink:to="loc_srt_NorthAmericaMember_09ce5f0d-2caa-45a4-9850-9921f77ffc81" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CN_b17bb9fb-7995-4abe-acac-e4cb8bc22f35" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_CN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_017312b9-ab9e-4069-ac06-fd8bce9ed557" xlink:to="loc_country_CN_b17bb9fb-7995-4abe-acac-e4cb8bc22f35" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AsiaExcludingPeoplesRepublicOfChinaMember_53d95da0-6639-4830-8e93-92f5c6aa0338" xlink:href="ueic-20230630.xsd#ueic_AsiaExcludingPeoplesRepublicOfChinaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_017312b9-ab9e-4069-ac06-fd8bce9ed557" xlink:to="loc_ueic_AsiaExcludingPeoplesRepublicOfChinaMember_53d95da0-6639-4830-8e93-92f5c6aa0338" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember_118c4ae1-3636-4bf5-b440-bc1386f5293d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EuropeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_017312b9-ab9e-4069-ac06-fd8bce9ed557" xlink:to="loc_srt_EuropeMember_118c4ae1-3636-4bf5-b440-bc1386f5293d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SouthAmericaMember_0977c9c5-744d-4898-b090-3364da59cf77" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SouthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_017312b9-ab9e-4069-ac06-fd8bce9ed557" xlink:to="loc_srt_SouthAmericaMember_0977c9c5-744d-4898-b090-3364da59cf77" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/RevenueandAccountsReceivableNetPatternofRevenueRecognitionDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#RevenueandAccountsReceivableNetPatternofRevenueRecognitionDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/RevenueandAccountsReceivableNetPatternofRevenueRecognitionDetails" xlink:type="extended" id="i579280b02251428daf3c6d0c0af69c71_RevenueandAccountsReceivableNetPatternofRevenueRecognitionDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_31b0f976-7b8f-465c-acad-de024370d605" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_55642725-86fb-4e33-9521-0954778685cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_31b0f976-7b8f-465c-acad-de024370d605" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_55642725-86fb-4e33-9521-0954778685cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_3669167c-2c3c-47d3-b029-0390063aeecd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_31b0f976-7b8f-465c-acad-de024370d605" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_3669167c-2c3c-47d3-b029-0390063aeecd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_a5933faa-a25d-4936-b20c-6f0aca41292f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_3669167c-2c3c-47d3-b029-0390063aeecd" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_a5933faa-a25d-4936-b20c-6f0aca41292f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_a5933faa-a25d-4936-b20c-6f0aca41292f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_a5933faa-a25d-4936-b20c-6f0aca41292f" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_a5933faa-a25d-4936-b20c-6f0aca41292f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_7705c61d-c3ac-434a-88e4-3a449b26d11a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_a5933faa-a25d-4936-b20c-6f0aca41292f" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_7705c61d-c3ac-434a-88e4-3a449b26d11a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredAtPointInTimeMember_c09769a9-9008-481c-8ae8-067ba125e45f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransferredAtPointInTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_7705c61d-c3ac-434a-88e4-3a449b26d11a" xlink:to="loc_us-gaap_TransferredAtPointInTimeMember_c09769a9-9008-481c-8ae8-067ba125e45f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredOverTimeMember_6b848cb4-5529-49ac-a32f-50807ba50be1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransferredOverTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_7705c61d-c3ac-434a-88e4-3a449b26d11a" xlink:to="loc_us-gaap_TransferredOverTimeMember_6b848cb4-5529-49ac-a32f-50807ba50be1" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/RevenueandAccountsReceivableNetRevenuefromExternalCustomersbyGeographicAreasDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#RevenueandAccountsReceivableNetRevenuefromExternalCustomersbyGeographicAreasDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/RevenueandAccountsReceivableNetRevenuefromExternalCustomersbyGeographicAreasDetails" xlink:type="extended" id="i4c0a8b917d20405085aabbf6e65ef14e_RevenueandAccountsReceivableNetRevenuefromExternalCustomersbyGeographicAreasDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_d33217e4-baec-4b87-bdb4-ce2f00ac73ba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_9855829f-93be-4b2c-8a33-564836cc0c5a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d33217e4-baec-4b87-bdb4-ce2f00ac73ba" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_9855829f-93be-4b2c-8a33-564836cc0c5a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_e148f6b4-e3f7-49ff-8133-56b61189b937" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d33217e4-baec-4b87-bdb4-ce2f00ac73ba" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_e148f6b4-e3f7-49ff-8133-56b61189b937" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_9fe859b9-ca86-4b5d-b241-552c8d4af157" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_e148f6b4-e3f7-49ff-8133-56b61189b937" xlink:to="loc_srt_StatementGeographicalAxis_9fe859b9-ca86-4b5d-b241-552c8d4af157" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_9fe859b9-ca86-4b5d-b241-552c8d4af157_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_9fe859b9-ca86-4b5d-b241-552c8d4af157" xlink:to="loc_srt_SegmentGeographicalDomain_9fe859b9-ca86-4b5d-b241-552c8d4af157_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_7abc8cdf-0d6f-4791-8dfa-740c6a26a978" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_9fe859b9-ca86-4b5d-b241-552c8d4af157" xlink:to="loc_srt_SegmentGeographicalDomain_7abc8cdf-0d6f-4791-8dfa-740c6a26a978" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_b5f75170-9581-44e1-a7ab-4c5797ea7b1c" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7abc8cdf-0d6f-4791-8dfa-740c6a26a978" xlink:to="loc_country_US_b5f75170-9581-44e1-a7ab-4c5797ea7b1c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AsiaExcludingPeoplesRepublicOfChinaMember_456ef9d2-34a7-4414-a291-5d8a67d1156f" xlink:href="ueic-20230630.xsd#ueic_AsiaExcludingPeoplesRepublicOfChinaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7abc8cdf-0d6f-4791-8dfa-740c6a26a978" xlink:to="loc_ueic_AsiaExcludingPeoplesRepublicOfChinaMember_456ef9d2-34a7-4414-a291-5d8a67d1156f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember_ca05f1b8-cd9c-49c6-8fc0-8a7bd8748d5c" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EuropeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7abc8cdf-0d6f-4791-8dfa-740c6a26a978" xlink:to="loc_srt_EuropeMember_ca05f1b8-cd9c-49c6-8fc0-8a7bd8748d5c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CN_5d1fb408-25bb-4112-9153-8a05c44065c6" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_CN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7abc8cdf-0d6f-4791-8dfa-740c6a26a978" xlink:to="loc_country_CN_5d1fb408-25bb-4112-9153-8a05c44065c6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LatinAmericaMember_49aef75a-df59-4a31-a8c7-6c07b8b05e1b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_LatinAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7abc8cdf-0d6f-4791-8dfa-740c6a26a978" xlink:to="loc_srt_LatinAmericaMember_49aef75a-df59-4a31-a8c7-6c07b8b05e1b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AllOtherCountriesMember_667feb64-a38d-4aca-b933-febcde43b02b" xlink:href="ueic-20230630.xsd#ueic_AllOtherCountriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_7abc8cdf-0d6f-4791-8dfa-740c6a26a978" xlink:to="loc_ueic_AllOtherCountriesMember_667feb64-a38d-4aca-b933-febcde43b02b" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/RevenueandAccountsReceivableNetNetSalestoSignificantCustomersDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#RevenueandAccountsReceivableNetNetSalestoSignificantCustomersDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/RevenueandAccountsReceivableNetNetSalestoSignificantCustomersDetails" xlink:type="extended" id="id7bd44cdb9284db3a99c3a3bd1e1428e_RevenueandAccountsReceivableNetNetSalestoSignificantCustomersDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_f032b29e-e908-42fb-a605-fc89587f4eb8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_6c31dfe0-a8fd-463a-8191-07c6c49d5e8c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_f032b29e-e908-42fb-a605-fc89587f4eb8" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_6c31dfe0-a8fd-463a-8191-07c6c49d5e8c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_cd2434b8-cda0-4399-8431-0b167b6cd1df" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_f032b29e-e908-42fb-a605-fc89587f4eb8" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_cd2434b8-cda0-4399-8431-0b167b6cd1df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_9d5ebb56-ab4f-436a-8108-7f18543b37cb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_f032b29e-e908-42fb-a605-fc89587f4eb8" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_9d5ebb56-ab4f-436a-8108-7f18543b37cb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_7321af53-384d-440d-86fe-adecc3fb13b8" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_9d5ebb56-ab4f-436a-8108-7f18543b37cb" xlink:to="loc_srt_MajorCustomersAxis_7321af53-384d-440d-86fe-adecc3fb13b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_7321af53-384d-440d-86fe-adecc3fb13b8_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_7321af53-384d-440d-86fe-adecc3fb13b8" xlink:to="loc_srt_NameOfMajorCustomerDomain_7321af53-384d-440d-86fe-adecc3fb13b8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_774eb9f4-d9c0-4168-9b72-7962e7349367" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_7321af53-384d-440d-86fe-adecc3fb13b8" xlink:to="loc_srt_NameOfMajorCustomerDomain_774eb9f4-d9c0-4168-9b72-7962e7349367" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ComcastCorporationMember_9ebb3ccc-96e6-440e-8c92-1e9e72073726" xlink:href="ueic-20230630.xsd#ueic_ComcastCorporationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_774eb9f4-d9c0-4168-9b72-7962e7349367" xlink:to="loc_ueic_ComcastCorporationMember_9ebb3ccc-96e6-440e-8c92-1e9e72073726" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_DaikinIndustriesLtd.Member_93706885-3298-4f37-b21e-c970d8415e3f" xlink:href="ueic-20230630.xsd#ueic_DaikinIndustriesLtd.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_774eb9f4-d9c0-4168-9b72-7962e7349367" xlink:to="loc_ueic_DaikinIndustriesLtd.Member_93706885-3298-4f37-b21e-c970d8415e3f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_19e113d7-b4ad-4afc-ad1f-06a3e6864bcd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_9d5ebb56-ab4f-436a-8108-7f18543b37cb" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_19e113d7-b4ad-4afc-ad1f-06a3e6864bcd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_19e113d7-b4ad-4afc-ad1f-06a3e6864bcd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_19e113d7-b4ad-4afc-ad1f-06a3e6864bcd" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_19e113d7-b4ad-4afc-ad1f-06a3e6864bcd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_b7009ea6-4e6d-4410-bb91-8a32a3114dad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_19e113d7-b4ad-4afc-ad1f-06a3e6864bcd" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_b7009ea6-4e6d-4410-bb91-8a32a3114dad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_f3a6d3d6-210d-4518-97eb-9bd1308c21df" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_b7009ea6-4e6d-4410-bb91-8a32a3114dad" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_f3a6d3d6-210d-4518-97eb-9bd1308c21df" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_97690fbe-4626-425f-8952-fbddb6d8bed8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_9d5ebb56-ab4f-436a-8108-7f18543b37cb" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_97690fbe-4626-425f-8952-fbddb6d8bed8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_97690fbe-4626-425f-8952-fbddb6d8bed8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_97690fbe-4626-425f-8952-fbddb6d8bed8" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_97690fbe-4626-425f-8952-fbddb6d8bed8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_a7c58e94-8922-44e9-8738-0ac20a7a6d66" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_97690fbe-4626-425f-8952-fbddb6d8bed8" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_a7c58e94-8922-44e9-8738-0ac20a7a6d66" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_23eb6a1d-f8a7-47a2-8177-0da1ce51899d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_a7c58e94-8922-44e9-8738-0ac20a7a6d66" xlink:to="loc_us-gaap_SalesRevenueNetMember_23eb6a1d-f8a7-47a2-8177-0da1ce51899d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/RevenueandAccountsReceivableNetTradeReceivablesAssociatedwithSignificantCustomersDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#RevenueandAccountsReceivableNetTradeReceivablesAssociatedwithSignificantCustomersDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/RevenueandAccountsReceivableNetTradeReceivablesAssociatedwithSignificantCustomersDetails" xlink:type="extended" id="i0a588a61094c4384993b1b57dae244d2_RevenueandAccountsReceivableNetTradeReceivablesAssociatedwithSignificantCustomersDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_af377f37-3b8a-448e-83f3-5716866d8a2c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrent_224c6f5c-4260-4a13-9cee-51db1efc6cdb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_af377f37-3b8a-448e-83f3-5716866d8a2c" xlink:to="loc_us-gaap_ReceivablesNetCurrent_224c6f5c-4260-4a13-9cee-51db1efc6cdb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_3c9bff87-c0d7-4e2d-8bb1-1b714e6d7b9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_af377f37-3b8a-448e-83f3-5716866d8a2c" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_3c9bff87-c0d7-4e2d-8bb1-1b714e6d7b9f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_e65fdaa0-5444-4fa2-844f-d269babd60f3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_af377f37-3b8a-448e-83f3-5716866d8a2c" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_e65fdaa0-5444-4fa2-844f-d269babd60f3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_a30105eb-ba24-4b87-8025-e6bad872623d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_e65fdaa0-5444-4fa2-844f-d269babd60f3" xlink:to="loc_srt_MajorCustomersAxis_a30105eb-ba24-4b87-8025-e6bad872623d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_a30105eb-ba24-4b87-8025-e6bad872623d_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_a30105eb-ba24-4b87-8025-e6bad872623d" xlink:to="loc_srt_NameOfMajorCustomerDomain_a30105eb-ba24-4b87-8025-e6bad872623d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_2007afa5-ddfc-4c09-8600-82ea9d2f9061" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_a30105eb-ba24-4b87-8025-e6bad872623d" xlink:to="loc_srt_NameOfMajorCustomerDomain_2007afa5-ddfc-4c09-8600-82ea9d2f9061" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ComcastCorporationMember_6697f60b-9da8-49e2-9404-e14f1996285a" xlink:href="ueic-20230630.xsd#ueic_ComcastCorporationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_2007afa5-ddfc-4c09-8600-82ea9d2f9061" xlink:to="loc_ueic_ComcastCorporationMember_6697f60b-9da8-49e2-9404-e14f1996285a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_fb8e569f-b7b1-4bc6-b646-c94099671506" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_e65fdaa0-5444-4fa2-844f-d269babd60f3" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_fb8e569f-b7b1-4bc6-b646-c94099671506" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_fb8e569f-b7b1-4bc6-b646-c94099671506_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_fb8e569f-b7b1-4bc6-b646-c94099671506" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_fb8e569f-b7b1-4bc6-b646-c94099671506_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_795ac7a1-f281-49d1-9295-6a5eb4bde387" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_fb8e569f-b7b1-4bc6-b646-c94099671506" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_795ac7a1-f281-49d1-9295-6a5eb4bde387" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeAccountsReceivableMember_66ac83b0-5e03-47f9-9948-b22470de63c8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TradeAccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_795ac7a1-f281-49d1-9295-6a5eb4bde387" xlink:to="loc_us-gaap_TradeAccountsReceivableMember_66ac83b0-5e03-47f9-9948-b22470de63c8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_2e1a38d1-ba2c-4d61-8229-ccb825441481" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_e65fdaa0-5444-4fa2-844f-d269babd60f3" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_2e1a38d1-ba2c-4d61-8229-ccb825441481" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_2e1a38d1-ba2c-4d61-8229-ccb825441481_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_2e1a38d1-ba2c-4d61-8229-ccb825441481" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_2e1a38d1-ba2c-4d61-8229-ccb825441481_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_de997b2f-17c4-4e91-869e-bb7b5748b0d3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_2e1a38d1-ba2c-4d61-8229-ccb825441481" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_de997b2f-17c4-4e91-869e-bb7b5748b0d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_5ae81544-fe2d-4321-9a1b-0c4f23b36089" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_de997b2f-17c4-4e91-869e-bb7b5748b0d3" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_5ae81544-fe2d-4321-9a1b-0c4f23b36089" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/InventoriesandSignificantSupplierPurchasesfromSignificantSuppliersDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#InventoriesandSignificantSupplierPurchasesfromSignificantSuppliersDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/InventoriesandSignificantSupplierPurchasesfromSignificantSuppliersDetails" xlink:type="extended" id="i1d3ce485da6e417e8c9e81ea3c62a9e2_InventoriesandSignificantSupplierPurchasesfromSignificantSuppliersDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_f5f069af-59e9-4062-93d6-dd3cd4b053a1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_InventoryPurchases_866f0c1c-03ba-48e2-8b0c-c4079cfae76f" xlink:href="ueic-20230630.xsd#ueic_InventoryPurchases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_f5f069af-59e9-4062-93d6-dd3cd4b053a1" xlink:to="loc_ueic_InventoryPurchases_866f0c1c-03ba-48e2-8b0c-c4079cfae76f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_a40da24b-ba5b-42f0-9ae1-7c4f047da462" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_f5f069af-59e9-4062-93d6-dd3cd4b053a1" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_a40da24b-ba5b-42f0-9ae1-7c4f047da462" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_5b9fc4e0-a493-49d4-8d5a-ee7e6ae10d8a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_f5f069af-59e9-4062-93d6-dd3cd4b053a1" xlink:to="loc_us-gaap_ConcentrationRiskTable_5b9fc4e0-a493-49d4-8d5a-ee7e6ae10d8a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_d70741c2-d3c9-4f5f-b2dc-7b07a93a3894" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_5b9fc4e0-a493-49d4-8d5a-ee7e6ae10d8a" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_d70741c2-d3c9-4f5f-b2dc-7b07a93a3894" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_d70741c2-d3c9-4f5f-b2dc-7b07a93a3894_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_d70741c2-d3c9-4f5f-b2dc-7b07a93a3894" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_d70741c2-d3c9-4f5f-b2dc-7b07a93a3894_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_d9452e32-04b7-4192-880c-286da8fababe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_d70741c2-d3c9-4f5f-b2dc-7b07a93a3894" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_d9452e32-04b7-4192-880c-286da8fababe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_QorvoInternationalPteLtdMember_fda87da5-1488-4992-8105-d6690c284d02" xlink:href="ueic-20230630.xsd#ueic_QorvoInternationalPteLtdMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_d9452e32-04b7-4192-880c-286da8fababe" xlink:to="loc_ueic_QorvoInternationalPteLtdMember_fda87da5-1488-4992-8105-d6690c284d02" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_404dbd36-b941-42f4-a693-fa1301d844e1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_5b9fc4e0-a493-49d4-8d5a-ee7e6ae10d8a" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_404dbd36-b941-42f4-a693-fa1301d844e1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_404dbd36-b941-42f4-a693-fa1301d844e1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_404dbd36-b941-42f4-a693-fa1301d844e1" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_404dbd36-b941-42f4-a693-fa1301d844e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_321c1066-90db-4d99-b3ca-bd08c52981c4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_404dbd36-b941-42f4-a693-fa1301d844e1" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_321c1066-90db-4d99-b3ca-bd08c52981c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplierConcentrationRiskMember_2ecb6397-da6f-4492-91e7-53b6aeca9f72" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplierConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_321c1066-90db-4d99-b3ca-bd08c52981c4" xlink:to="loc_us-gaap_SupplierConcentrationRiskMember_2ecb6397-da6f-4492-91e7-53b6aeca9f72" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_dd9c18f4-fdb0-4854-a5e8-d1dabe340fe3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_5b9fc4e0-a493-49d4-8d5a-ee7e6ae10d8a" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_dd9c18f4-fdb0-4854-a5e8-d1dabe340fe3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_dd9c18f4-fdb0-4854-a5e8-d1dabe340fe3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_dd9c18f4-fdb0-4854-a5e8-d1dabe340fe3" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_dd9c18f4-fdb0-4854-a5e8-d1dabe340fe3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_114073d6-8086-48a7-8272-aa7301f5c328" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_dd9c18f4-fdb0-4854-a5e8-d1dabe340fe3" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_114073d6-8086-48a7-8272-aa7301f5c328" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsTotalMember_da0ab05b-36d3-400f-9dc9-75f61b50b5de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfGoodsTotalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_114073d6-8086-48a7-8272-aa7301f5c328" xlink:to="loc_us-gaap_CostOfGoodsTotalMember_da0ab05b-36d3-400f-9dc9-75f61b50b5de" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/InventoriesandSignificantSupplierNarrativeDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#InventoriesandSignificantSupplierNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/InventoriesandSignificantSupplierNarrativeDetails" xlink:type="extended" id="i7d14f6064e3b43df94536ac22713c4b6_InventoriesandSignificantSupplierNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_b35a2514-d00d-445e-a7f0-f1fc18b1db9c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_InventoryPurchases_72c976ed-d883-4830-aa69-5d9ead27d1af" xlink:href="ueic-20230630.xsd#ueic_InventoryPurchases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_b35a2514-d00d-445e-a7f0-f1fc18b1db9c" xlink:to="loc_ueic_InventoryPurchases_72c976ed-d883-4830-aa69-5d9ead27d1af" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_d3b5ad92-a0e1-4cb2-bded-1da8767f9c5e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_b35a2514-d00d-445e-a7f0-f1fc18b1db9c" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_d3b5ad92-a0e1-4cb2-bded-1da8767f9c5e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a9bf2af3-d1c7-4001-8f6d-32e31031b879" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_b35a2514-d00d-445e-a7f0-f1fc18b1db9c" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a9bf2af3-d1c7-4001-8f6d-32e31031b879" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_9f693d95-51ea-4a81-a8d2-31bd313ef3cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a9bf2af3-d1c7-4001-8f6d-32e31031b879" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_9f693d95-51ea-4a81-a8d2-31bd313ef3cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_9f693d95-51ea-4a81-a8d2-31bd313ef3cc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_9f693d95-51ea-4a81-a8d2-31bd313ef3cc" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_9f693d95-51ea-4a81-a8d2-31bd313ef3cc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_09be70d5-3478-442e-8a36-6a04e947310b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_9f693d95-51ea-4a81-a8d2-31bd313ef3cc" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_09be70d5-3478-442e-8a36-6a04e947310b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplierConcentrationRiskMember_be9a1f52-adfa-452e-a2d4-7ea8fd933ad4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplierConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_09be70d5-3478-442e-8a36-6a04e947310b" xlink:to="loc_us-gaap_SupplierConcentrationRiskMember_be9a1f52-adfa-452e-a2d4-7ea8fd933ad4" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/LonglivedTangibleAssetsLonglivedTangibleAssetsbyGeographicAreaDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#LonglivedTangibleAssetsLonglivedTangibleAssetsbyGeographicAreaDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/LonglivedTangibleAssetsLonglivedTangibleAssetsbyGeographicAreaDetails" xlink:type="extended" id="i6b132e4fb8ac40e0bb31493218288017_LonglivedTangibleAssetsLonglivedTangibleAssetsbyGeographicAreaDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_6896f090-fc10-4b96-9d1f-09440a4b1664" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncurrentAssets_629fe7c3-0145-49d1-bd6b-aabfd47e7145" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_6896f090-fc10-4b96-9d1f-09440a4b1664" xlink:to="loc_us-gaap_NoncurrentAssets_629fe7c3-0145-49d1-bd6b-aabfd47e7145" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7d86f976-9acb-4986-a091-b293d38ae9be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_6896f090-fc10-4b96-9d1f-09440a4b1664" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7d86f976-9acb-4986-a091-b293d38ae9be" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_d4ebf419-219c-46b4-b4ce-8c4dfbae4541" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_7d86f976-9acb-4986-a091-b293d38ae9be" xlink:to="loc_srt_StatementGeographicalAxis_d4ebf419-219c-46b4-b4ce-8c4dfbae4541" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_d4ebf419-219c-46b4-b4ce-8c4dfbae4541_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_d4ebf419-219c-46b4-b4ce-8c4dfbae4541" xlink:to="loc_srt_SegmentGeographicalDomain_d4ebf419-219c-46b4-b4ce-8c4dfbae4541_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_99328075-f4d3-4fc1-acb9-8fdd21c52ab5" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_d4ebf419-219c-46b4-b4ce-8c4dfbae4541" xlink:to="loc_srt_SegmentGeographicalDomain_99328075-f4d3-4fc1-acb9-8fdd21c52ab5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_ee24f9eb-d380-49de-a74a-7bb84b4c430c" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_99328075-f4d3-4fc1-acb9-8fdd21c52ab5" xlink:to="loc_country_US_ee24f9eb-d380-49de-a74a-7bb84b4c430c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CN_a0dd82af-f014-4ea0-85c5-e253ec7fedcc" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_CN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_99328075-f4d3-4fc1-acb9-8fdd21c52ab5" xlink:to="loc_country_CN_a0dd82af-f014-4ea0-85c5-e253ec7fedcc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_MX_bfe3b8e0-8ab0-473e-b4e9-fc9203e09a46" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_MX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_99328075-f4d3-4fc1-acb9-8fdd21c52ab5" xlink:to="loc_country_MX_bfe3b8e0-8ab0-473e-b4e9-fc9203e09a46" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_VN_102cd881-3981-4ee5-9b08-8128859e14a2" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_VN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_99328075-f4d3-4fc1-acb9-8fdd21c52ab5" xlink:to="loc_country_VN_102cd881-3981-4ee5-9b08-8128859e14a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_AllOtherCountriesMember_ba18cdf8-3112-470e-8f17-01689322e80f" xlink:href="ueic-20230630.xsd#ueic_AllOtherCountriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_99328075-f4d3-4fc1-acb9-8fdd21c52ab5" xlink:to="loc_ueic_AllOtherCountriesMember_ba18cdf8-3112-470e-8f17-01689322e80f" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails" xlink:type="extended" id="i4298d9da844147398d84d4837633a393_GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7558970a-eb71-463d-9b26-27fdfbefb3e0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_117b6068-685d-4b6f-8e33-38a9c827070e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7558970a-eb71-463d-9b26-27fdfbefb3e0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_117b6068-685d-4b6f-8e33-38a9c827070e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_2e5e4a96-7ada-4b42-9221-23a42b275fbd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_117b6068-685d-4b6f-8e33-38a9c827070e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_2e5e4a96-7ada-4b42-9221-23a42b275fbd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_c2634051-d0ee-4232-aaa8-4bc08868d371" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_117b6068-685d-4b6f-8e33-38a9c827070e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_c2634051-d0ee-4232-aaa8-4bc08868d371" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_4f7f6147-089e-4840-a717-e9b9a51cb508" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_117b6068-685d-4b6f-8e33-38a9c827070e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_4f7f6147-089e-4840-a717-e9b9a51cb508" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_e391bd2d-0edf-42fd-b5fc-b9b1a26a52e1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_117b6068-685d-4b6f-8e33-38a9c827070e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_e391bd2d-0edf-42fd-b5fc-b9b1a26a52e1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_FiniteLivedIntangibleAssetsFullyAmortizedGross_c93b6448-d6ab-44ba-9cc3-375a972926bb" xlink:href="ueic-20230630.xsd#ueic_FiniteLivedIntangibleAssetsFullyAmortizedGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7558970a-eb71-463d-9b26-27fdfbefb3e0" xlink:to="loc_ueic_FiniteLivedIntangibleAssetsFullyAmortizedGross_c93b6448-d6ab-44ba-9cc3-375a972926bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f8085bbb-d168-4225-9d3f-abe412e7d2f4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_7558970a-eb71-463d-9b26-27fdfbefb3e0" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f8085bbb-d168-4225-9d3f-abe412e7d2f4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_82e46aed-6c00-4b10-8e82-4c4250c4cd68" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f8085bbb-d168-4225-9d3f-abe412e7d2f4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_82e46aed-6c00-4b10-8e82-4c4250c4cd68" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_82e46aed-6c00-4b10-8e82-4c4250c4cd68_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_82e46aed-6c00-4b10-8e82-4c4250c4cd68" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_82e46aed-6c00-4b10-8e82-4c4250c4cd68_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ca7ea6dc-7dba-4125-aad0-b5f21193ae05" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_82e46aed-6c00-4b10-8e82-4c4250c4cd68" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ca7ea6dc-7dba-4125-aad0-b5f21193ae05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_bb5e7afb-f968-4360-9ee6-57bf84f62da4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ca7ea6dc-7dba-4125-aad0-b5f21193ae05" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_bb5e7afb-f968-4360-9ee6-57bf84f62da4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_36c312a8-5223-4b34-a1c7-6205ecfa7b99" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ca7ea6dc-7dba-4125-aad0-b5f21193ae05" xlink:to="loc_us-gaap_CustomerRelationshipsMember_36c312a8-5223-4b34-a1c7-6205ecfa7b99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_43fbab9f-a24b-48e7-a195-a9badbf448f0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ca7ea6dc-7dba-4125-aad0-b5f21193ae05" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_43fbab9f-a24b-48e7-a195-a9badbf448f0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DistributionRightsMember_53541f51-1285-44e3-a1e7-b36cca4bbe40" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DistributionRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ca7ea6dc-7dba-4125-aad0-b5f21193ae05" xlink:to="loc_us-gaap_DistributionRightsMember_53541f51-1285-44e3-a1e7-b36cca4bbe40" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PatentsMember_a3e9f474-b469-4c2b-93c5-e37145ce4c17" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PatentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ca7ea6dc-7dba-4125-aad0-b5f21193ae05" xlink:to="loc_us-gaap_PatentsMember_a3e9f474-b469-4c2b-93c5-e37145ce4c17" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_e76ab0d3-082d-4367-a7f9-9baa21d66a11" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TrademarksAndTradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_ca7ea6dc-7dba-4125-aad0-b5f21193ae05" xlink:to="loc_us-gaap_TrademarksAndTradeNamesMember_e76ab0d3-082d-4367-a7f9-9baa21d66a11" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_72bf790e-f169-4258-8fcf-d136b64cab00" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_f8085bbb-d168-4225-9d3f-abe412e7d2f4" xlink:to="loc_srt_RangeAxis_72bf790e-f169-4258-8fcf-d136b64cab00" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_72bf790e-f169-4258-8fcf-d136b64cab00_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_72bf790e-f169-4258-8fcf-d136b64cab00" xlink:to="loc_srt_RangeMember_72bf790e-f169-4258-8fcf-d136b64cab00_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_106a911d-eda0-4ae5-956a-568f43e7f3e7" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_72bf790e-f169-4258-8fcf-d136b64cab00" xlink:to="loc_srt_RangeMember_106a911d-eda0-4ae5-956a-568f43e7f3e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_06168ce1-575a-4775-8341-2b80abda5948" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_106a911d-eda0-4ae5-956a-568f43e7f3e7" xlink:to="loc_srt_MinimumMember_06168ce1-575a-4775-8341-2b80abda5948" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_b6a4bfd8-fb8a-47b1-860e-1ae0c17535f1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_106a911d-eda0-4ae5-956a-568f43e7f3e7" xlink:to="loc_srt_MaximumMember_b6a4bfd8-fb8a-47b1-860e-1ae0c17535f1" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails_1" xlink:type="simple" xlink:href="ueic-20230630.xsd#GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails_1"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails_1" xlink:type="extended" id="i37587e423bdb42fd943a37468a7ec04a_GoodwillandIntangibleAssetsNetAmortizationExpensebyIncomeStatementCaptionDetails_1">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_92720994-c94d-427d-84e3-e675042e7c26" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_e6832e84-60c5-4677-b6aa-60b064ae4276" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_92720994-c94d-427d-84e3-e675042e7c26" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_e6832e84-60c5-4677-b6aa-60b064ae4276" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5276cc92-8331-40c1-a739-4cbc8775d7fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_92720994-c94d-427d-84e3-e675042e7c26" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5276cc92-8331-40c1-a739-4cbc8775d7fe" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_2288c36c-ba92-4483-98e6-9952d87529a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5276cc92-8331-40c1-a739-4cbc8775d7fe" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_2288c36c-ba92-4483-98e6-9952d87529a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_2288c36c-ba92-4483-98e6-9952d87529a8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_2288c36c-ba92-4483-98e6-9952d87529a8" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_2288c36c-ba92-4483-98e6-9952d87529a8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_04a97035-af58-4ff3-9605-9c9ffd30c0e1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_2288c36c-ba92-4483-98e6-9952d87529a8" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_04a97035-af58-4ff3-9605-9c9ffd30c0e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_c56e4d4c-04d0-4cb8-ad16-a4394d3544ab" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_04a97035-af58-4ff3-9605-9c9ffd30c0e1" xlink:to="loc_us-gaap_CostOfSalesMember_c56e4d4c-04d0-4cb8-ad16-a4394d3544ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_8290ce5a-fe4b-4320-8d81-943c978664e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_04a97035-af58-4ff3-9605-9c9ffd30c0e1" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_8290ce5a-fe4b-4320-8d81-943c978664e6" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/LeasesNarrativeDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#LeasesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/LeasesNarrativeDetails" xlink:type="extended" id="i2b378c5d38b149c7b7c79b9411ce26dd_LeasesNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_81956b01-edd6-429a-b7f9-5a9b82372ba4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm_cb7e1a85-cae7-4676-bc00-da567415e471" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseRemainingLeaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_81956b01-edd6-429a-b7f9-5a9b82372ba4" xlink:to="loc_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm_cb7e1a85-cae7-4676-bc00-da567415e471" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_253f35a9-f020-463f-b022-b44e7abd134a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_81956b01-edd6-429a-b7f9-5a9b82372ba4" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_253f35a9-f020-463f-b022-b44e7abd134a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_d15f5ddb-9179-4201-ac77-41ba8a6eecd8" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_253f35a9-f020-463f-b022-b44e7abd134a" xlink:to="loc_srt_RangeAxis_d15f5ddb-9179-4201-ac77-41ba8a6eecd8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d15f5ddb-9179-4201-ac77-41ba8a6eecd8_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_d15f5ddb-9179-4201-ac77-41ba8a6eecd8" xlink:to="loc_srt_RangeMember_d15f5ddb-9179-4201-ac77-41ba8a6eecd8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_a8bd51c6-3220-4b42-b6a6-30d2f08fe63a" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_d15f5ddb-9179-4201-ac77-41ba8a6eecd8" xlink:to="loc_srt_RangeMember_a8bd51c6-3220-4b42-b6a6-30d2f08fe63a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_c7b52530-32cc-439b-95a7-e08387e5d0d1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_a8bd51c6-3220-4b42-b6a6-30d2f08fe63a" xlink:to="loc_srt_MaximumMember_c7b52530-32cc-439b-95a7-e08387e5d0d1" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/LeasesOperatingLeaseExpenseOperatingLeaseCashFlowsandSupplementalCashFlowInformationDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#LeasesOperatingLeaseExpenseOperatingLeaseCashFlowsandSupplementalCashFlowInformationDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/LeasesOperatingLeaseExpenseOperatingLeaseCashFlowsandSupplementalCashFlowInformationDetails" xlink:type="extended" id="ibc6fcad71f614a77a62408a0c9ce6877_LeasesOperatingLeaseExpenseOperatingLeaseCashFlowsandSupplementalCashFlowInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b77f74d-0b26-4430-8c94-fc62fde0a5d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_2920c65c-593d-4771-9ec0-ba195c757215" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b77f74d-0b26-4430-8c94-fc62fde0a5d9" xlink:to="loc_us-gaap_OperatingLeaseCost_2920c65c-593d-4771-9ec0-ba195c757215" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments_ff90cceb-1b6a-43f2-b6b8-50e37fd9035e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeasePayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b77f74d-0b26-4430-8c94-fc62fde0a5d9" xlink:to="loc_us-gaap_OperatingLeasePayments_ff90cceb-1b6a-43f2-b6b8-50e37fd9035e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_ba7307f6-19c9-4b13-9c2a-084ed787c4be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b77f74d-0b26-4430-8c94-fc62fde0a5d9" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_ba7307f6-19c9-4b13-9c2a-084ed787c4be" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_5cff43a2-1559-4e6e-8c8c-0009c6daba5e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b77f74d-0b26-4430-8c94-fc62fde0a5d9" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_5cff43a2-1559-4e6e-8c8c-0009c6daba5e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_5b1f3df1-3bbb-4de4-b071-7d87dc67cdcb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_5cff43a2-1559-4e6e-8c8c-0009c6daba5e" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_5b1f3df1-3bbb-4de4-b071-7d87dc67cdcb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_5b1f3df1-3bbb-4de4-b071-7d87dc67cdcb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_5b1f3df1-3bbb-4de4-b071-7d87dc67cdcb" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_5b1f3df1-3bbb-4de4-b071-7d87dc67cdcb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_33a507b6-c7d9-4d73-b3a5-c852f1a27982" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_5b1f3df1-3bbb-4de4-b071-7d87dc67cdcb" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_33a507b6-c7d9-4d73-b3a5-c852f1a27982" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_fe05c927-9486-406a-925f-bcfea38b341c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_33a507b6-c7d9-4d73-b3a5-c852f1a27982" xlink:to="loc_us-gaap_CostOfSalesMember_fe05c927-9486-406a-925f-bcfea38b341c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_2f6d2986-d9fd-4ef6-aef9-62d3fb49dcf7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_33a507b6-c7d9-4d73-b3a5-c852f1a27982" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_2f6d2986-d9fd-4ef6-aef9-62d3fb49dcf7" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/LineofCreditDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#LineofCreditDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/LineofCreditDetails" xlink:type="extended" id="ia5d233d775a649c2974785a5ad18a5f8_LineofCreditDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_b44c1e13-397a-4c6c-85fc-babba91830e2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_b44c1e13-397a-4c6c-85fc-babba91830e2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_581d2fbd-6e30-4d55-8c32-b690e2209674" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_581d2fbd-6e30-4d55-8c32-b690e2209674" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_baf96da0-93ae-4fc0-a3f1-cb0cd8fe10dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_baf96da0-93ae-4fc0-a3f1-cb0cd8fe10dd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_2865a486-6d48-4f1e-a2d7-59a92ed2ccd0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_2865a486-6d48-4f1e-a2d7-59a92ed2ccd0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeeAmount_c6a1fa1a-20b7-431c-a71a-4b7e66ed9911" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityCommitmentFeeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeeAmount_c6a1fa1a-20b7-431c-a71a-4b7e66ed9911" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LinesOfCreditCurrent_82ee053c-6524-4a5a-9246-e0c6307beddd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LinesOfCreditCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:to="loc_us-gaap_LinesOfCreditCurrent_82ee053c-6524-4a5a-9246-e0c6307beddd" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseShortTermBorrowings_5a8f19a1-6fb3-4ba0-9efe-52f79e61a0e2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpenseShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:to="loc_us-gaap_InterestExpenseShortTermBorrowings_5a8f19a1-6fb3-4ba0-9efe-52f79e61a0e2" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_d5761b2e-d329-4d8c-b914-af7c6ec8d414" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_cd06084a-afd4-4f8a-983d-48d15fa51775" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_d5761b2e-d329-4d8c-b914-af7c6ec8d414" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_c1324d5e-da46-4c2b-b9c5-72bdee2548cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_d5761b2e-d329-4d8c-b914-af7c6ec8d414" xlink:to="loc_us-gaap_CreditFacilityAxis_c1324d5e-da46-4c2b-b9c5-72bdee2548cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_c1324d5e-da46-4c2b-b9c5-72bdee2548cc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_c1324d5e-da46-4c2b-b9c5-72bdee2548cc" xlink:to="loc_us-gaap_CreditFacilityDomain_c1324d5e-da46-4c2b-b9c5-72bdee2548cc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_6cb0e671-59f0-4c87-8c89-823f3c4d2429" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_c1324d5e-da46-4c2b-b9c5-72bdee2548cc" xlink:to="loc_us-gaap_CreditFacilityDomain_6cb0e671-59f0-4c87-8c89-823f3c4d2429" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_9de6fc60-785a-498d-9b0c-e5b4217fd61a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_6cb0e671-59f0-4c87-8c89-823f3c4d2429" xlink:to="loc_us-gaap_LineOfCreditMember_9de6fc60-785a-498d-9b0c-e5b4217fd61a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_3ab0c7f1-a831-4ff6-9e38-4db737e21a20" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_6cb0e671-59f0-4c87-8c89-823f3c4d2429" xlink:to="loc_us-gaap_LetterOfCreditMember_3ab0c7f1-a831-4ff6-9e38-4db737e21a20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_cbf5ca6b-e09f-4a06-8ef1-d847ea88193b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_d5761b2e-d329-4d8c-b914-af7c6ec8d414" xlink:to="loc_us-gaap_DebtInstrumentAxis_cbf5ca6b-e09f-4a06-8ef1-d847ea88193b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_cbf5ca6b-e09f-4a06-8ef1-d847ea88193b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_cbf5ca6b-e09f-4a06-8ef1-d847ea88193b" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_cbf5ca6b-e09f-4a06-8ef1-d847ea88193b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_2e2be37f-f149-454e-ba6a-c18645dd8519" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_cbf5ca6b-e09f-4a06-8ef1-d847ea88193b" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_2e2be37f-f149-454e-ba6a-c18645dd8519" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SecondAmendedCreditAgreementMember_16d1c71b-c7c3-401d-8ae3-d808b3014261" xlink:href="ueic-20230630.xsd#ueic_SecondAmendedCreditAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2e2be37f-f149-454e-ba6a-c18645dd8519" xlink:to="loc_ueic_SecondAmendedCreditAgreementMember_16d1c71b-c7c3-401d-8ae3-d808b3014261" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_bb15118d-e0bb-413b-8c41-3fc95d571cad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_d5761b2e-d329-4d8c-b914-af7c6ec8d414" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_bb15118d-e0bb-413b-8c41-3fc95d571cad" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_bb15118d-e0bb-413b-8c41-3fc95d571cad_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_bb15118d-e0bb-413b-8c41-3fc95d571cad" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_bb15118d-e0bb-413b-8c41-3fc95d571cad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_d9713ef1-a16c-4df7-8b04-91dba1029e24" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_bb15118d-e0bb-413b-8c41-3fc95d571cad" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_d9713ef1-a16c-4df7-8b04-91dba1029e24" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_UsBankMember_8aa498dd-75b4-49a1-b306-88f88650fb3a" xlink:href="ueic-20230630.xsd#ueic_UsBankMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_d9713ef1-a16c-4df7-8b04-91dba1029e24" xlink:to="loc_ueic_UsBankMember_8aa498dd-75b4-49a1-b306-88f88650fb3a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_2cfe34e0-bd97-46af-8d07-02e7e0af9256" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_d5761b2e-d329-4d8c-b914-af7c6ec8d414" xlink:to="loc_us-gaap_VariableRateAxis_2cfe34e0-bd97-46af-8d07-02e7e0af9256" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_2cfe34e0-bd97-46af-8d07-02e7e0af9256_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_2cfe34e0-bd97-46af-8d07-02e7e0af9256" xlink:to="loc_us-gaap_VariableRateDomain_2cfe34e0-bd97-46af-8d07-02e7e0af9256_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_9e394c8e-6bf2-4c88-9c7a-ad8206877e16" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_2cfe34e0-bd97-46af-8d07-02e7e0af9256" xlink:to="loc_us-gaap_VariableRateDomain_9e394c8e-6bf2-4c88-9c7a-ad8206877e16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BaseRateMember_fb870030-4dd7-4d66-be61-26130ac7d7f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BaseRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_9e394c8e-6bf2-4c88-9c7a-ad8206877e16" xlink:to="loc_us-gaap_BaseRateMember_fb870030-4dd7-4d66-be61-26130ac7d7f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_SecuredOvernightFinancingRateSOFRMember_6cc78759-9f4c-4faa-8dad-2c9df9a1f404" xlink:href="ueic-20230630.xsd#ueic_SecuredOvernightFinancingRateSOFRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_9e394c8e-6bf2-4c88-9c7a-ad8206877e16" xlink:to="loc_ueic_SecuredOvernightFinancingRateSOFRMember_6cc78759-9f4c-4faa-8dad-2c9df9a1f404" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_fa4755ce-2f63-4137-9780-896e49cd2f29" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_d5761b2e-d329-4d8c-b914-af7c6ec8d414" xlink:to="loc_srt_RangeAxis_fa4755ce-2f63-4137-9780-896e49cd2f29" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_fa4755ce-2f63-4137-9780-896e49cd2f29_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_fa4755ce-2f63-4137-9780-896e49cd2f29" xlink:to="loc_srt_RangeMember_fa4755ce-2f63-4137-9780-896e49cd2f29_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_fb833613-5ade-40cb-af61-bec337bee74f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_fa4755ce-2f63-4137-9780-896e49cd2f29" xlink:to="loc_srt_RangeMember_fb833613-5ade-40cb-af61-bec337bee74f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_e515b3e2-86c6-4840-be89-91e980b8cf31" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_fb833613-5ade-40cb-af61-bec337bee74f" xlink:to="loc_srt_MinimumMember_e515b3e2-86c6-4840-be89-91e980b8cf31" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_64c77c7e-0ada-434f-9b97-313530e87104" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_fb833613-5ade-40cb-af61-bec337bee74f" xlink:to="loc_srt_MaximumMember_64c77c7e-0ada-434f-9b97-313530e87104" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_de0ddb66-bc7d-44f3-be68-37293f2d4b6b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_d5761b2e-d329-4d8c-b914-af7c6ec8d414" xlink:to="loc_srt_StatementScenarioAxis_de0ddb66-bc7d-44f3-be68-37293f2d4b6b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_de0ddb66-bc7d-44f3-be68-37293f2d4b6b_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_de0ddb66-bc7d-44f3-be68-37293f2d4b6b" xlink:to="loc_srt_ScenarioUnspecifiedDomain_de0ddb66-bc7d-44f3-be68-37293f2d4b6b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_64247942-6b02-449f-b4c9-1c6391811ff6" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_de0ddb66-bc7d-44f3-be68-37293f2d4b6b" xlink:to="loc_srt_ScenarioUnspecifiedDomain_64247942-6b02-449f-b4c9-1c6391811ff6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_f10aac14-9fdf-4ead-9cde-30366691145d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_64247942-6b02-449f-b4c9-1c6391811ff6" xlink:to="loc_srt_ScenarioForecastMember_f10aac14-9fdf-4ead-9cde-30366691145d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#CommitmentsandContingenciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="extended" id="ie3de90c5d46042c38d056c1eeb2cc26f_CommitmentsandContingenciesNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:href="ueic-20230630.xsd#ueic_ContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyPatentsAllegedlyInfringedNumber_403a26b6-69bf-44d6-a295-876ce4277501" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyPatentsAllegedlyInfringedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_us-gaap_LossContingencyPatentsAllegedlyInfringedNumber_403a26b6-69bf-44d6-a295-876ce4277501" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_LossContingencyPatentsAllegedlyInfringedPatentFamiliesNumber_d2c4dd88-7014-4975-9ce3-9616f66e0db4" xlink:href="ueic-20230630.xsd#ueic_LossContingencyPatentsAllegedlyInfringedPatentFamiliesNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_ueic_LossContingencyPatentsAllegedlyInfringedPatentFamiliesNumber_d2c4dd88-7014-4975-9ce3-9616f66e0db4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_NumberOfInterPartesReviewIPRRequestsDenied_e160a293-8f40-4b43-92a2-5e3a8dcabf81" xlink:href="ueic-20230630.xsd#ueic_NumberOfInterPartesReviewIPRRequestsDenied"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_ueic_NumberOfInterPartesReviewIPRRequestsDenied_e160a293-8f40-4b43-92a2-5e3a8dcabf81" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_NumberOfInterPartesReviewIPRRequestsGranted_97089bfe-50ae-4fae-bf9f-244caf9da0c3" xlink:href="ueic-20230630.xsd#ueic_NumberOfInterPartesReviewIPRRequestsGranted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_ueic_NumberOfInterPartesReviewIPRRequestsGranted_97089bfe-50ae-4fae-bf9f-244caf9da0c3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyPatentsFoundNotInfringedNumber_a12ee675-a739-4978-bc13-93854d873a42" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyPatentsFoundNotInfringedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_us-gaap_LossContingencyPatentsFoundNotInfringedNumber_a12ee675-a739-4978-bc13-93854d873a42" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_NumberOfPatentsSubjectToInterPartesReviewIPR_e6b55263-78f1-4b35-8115-1812420b017a" xlink:href="ueic-20230630.xsd#ueic_NumberOfPatentsSubjectToInterPartesReviewIPR"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_ueic_NumberOfPatentsSubjectToInterPartesReviewIPR_e6b55263-78f1-4b35-8115-1812420b017a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_LossContingencyPatentsAllegedlyInfringedAndNotAppealedNumber_2d47bb8e-54cc-41a6-87d5-181677e0a4cf" xlink:href="ueic-20230630.xsd#ueic_LossContingencyPatentsAllegedlyInfringedAndNotAppealedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_ueic_LossContingencyPatentsAllegedlyInfringedAndNotAppealedNumber_2d47bb8e-54cc-41a6-87d5-181677e0a4cf" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_NumberOfCustomersWithAFiledComplaint_3b8ed34d-9375-4417-9928-f3d16c733797" xlink:href="ueic-20230630.xsd#ueic_NumberOfCustomersWithAFiledComplaint"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_ueic_NumberOfCustomersWithAFiledComplaint_3b8ed34d-9375-4417-9928-f3d16c733797" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ContingenciesTable_db70f936-1f95-473d-828a-a5fa5f1bc293" xlink:href="ueic-20230630.xsd#ueic_ContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ueic_ContingenciesLineItems_dfc71ea6-2ecd-4d69-8aae-301e9c013e11" xlink:to="loc_ueic_ContingenciesTable_db70f936-1f95-473d-828a-a5fa5f1bc293" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusAxis_1a4c8a4b-c045-4d95-905a-dbf48736b19d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LitigationStatusAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_ContingenciesTable_db70f936-1f95-473d-828a-a5fa5f1bc293" xlink:to="loc_us-gaap_LitigationStatusAxis_1a4c8a4b-c045-4d95-905a-dbf48736b19d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_1a4c8a4b-c045-4d95-905a-dbf48736b19d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LitigationStatusAxis_1a4c8a4b-c045-4d95-905a-dbf48736b19d" xlink:to="loc_us-gaap_LitigationStatusDomain_1a4c8a4b-c045-4d95-905a-dbf48736b19d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_0708ba6b-e85b-4ea3-8bac-b827588f54b6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LitigationStatusAxis_1a4c8a4b-c045-4d95-905a-dbf48736b19d" xlink:to="loc_us-gaap_LitigationStatusDomain_0708ba6b-e85b-4ea3-8bac-b827588f54b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PendingLitigationMember_e049cd4c-026f-4829-bbb4-ea7f95243e1f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PendingLitigationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_0708ba6b-e85b-4ea3-8bac-b827588f54b6" xlink:to="loc_us-gaap_PendingLitigationMember_e049cd4c-026f-4829-bbb4-ea7f95243e1f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_13b66543-8248-444e-b816-d8368bf8cc1f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ueic_ContingenciesTable_db70f936-1f95-473d-828a-a5fa5f1bc293" xlink:to="loc_srt_LitigationCaseAxis_13b66543-8248-444e-b816-d8368bf8cc1f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_13b66543-8248-444e-b816-d8368bf8cc1f_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_13b66543-8248-444e-b816-d8368bf8cc1f" xlink:to="loc_srt_LitigationCaseTypeDomain_13b66543-8248-444e-b816-d8368bf8cc1f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_2a24f80a-7f23-4c3d-a248-88a55e0e523e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_13b66543-8248-444e-b816-d8368bf8cc1f" xlink:to="loc_srt_LitigationCaseTypeDomain_2a24f80a-7f23-4c3d-a248-88a55e0e523e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_PatentLawsuitAgainstRokuMember_ba1796d1-6d42-4ea9-bb8d-420117cb3ae8" xlink:href="ueic-20230630.xsd#ueic_PatentLawsuitAgainstRokuMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_2a24f80a-7f23-4c3d-a248-88a55e0e523e" xlink:to="loc_ueic_PatentLawsuitAgainstRokuMember_ba1796d1-6d42-4ea9-bb8d-420117cb3ae8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_RokuTCLHisenseandFunaiPatentInfringementITCMatterMember_c5a70c74-f181-41dc-99ce-653ec26578fd" xlink:href="ueic-20230630.xsd#ueic_RokuTCLHisenseandFunaiPatentInfringementITCMatterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_2a24f80a-7f23-4c3d-a248-88a55e0e523e" xlink:to="loc_ueic_RokuTCLHisenseandFunaiPatentInfringementITCMatterMember_c5a70c74-f181-41dc-99ce-653ec26578fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_TLCHisenseandFunaiITCMatterMember_0ea776ae-a7c2-408f-91b1-f4839e5a2e69" xlink:href="ueic-20230630.xsd#ueic_TLCHisenseandFunaiITCMatterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_2a24f80a-7f23-4c3d-a248-88a55e0e523e" xlink:to="loc_ueic_TLCHisenseandFunaiITCMatterMember_0ea776ae-a7c2-408f-91b1-f4839e5a2e69" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_RokuITCMatterMember_71a33c50-201d-4c7e-a50f-388f194e9db5" xlink:href="ueic-20230630.xsd#ueic_RokuITCMatterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_2a24f80a-7f23-4c3d-a248-88a55e0e523e" xlink:to="loc_ueic_RokuITCMatterMember_71a33c50-201d-4c7e-a50f-388f194e9db5" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/TreasuryStockRepurchasedSharesofCommonStockDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#TreasuryStockRepurchasedSharesofCommonStockDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/TreasuryStockRepurchasedSharesofCommonStockDetails" xlink:type="extended" id="i0210db4dcc4b4f43b13f0fb0b4034cfe_TreasuryStockRepurchasedSharesofCommonStockDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems_df4c00ea-fe66-470b-a14c-7981d0617ef0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityClassOfTreasuryStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_e3bd5926-dc78-41db-97c7-72ae648b68a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_df4c00ea-fe66-470b-a14c-7981d0617ef0" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_e3bd5926-dc78-41db-97c7-72ae648b68a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4626f1b6-b531-43c1-8d6f-f1322cf1f8a4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_df4c00ea-fe66-470b-a14c-7981d0617ef0" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4626f1b6-b531-43c1-8d6f-f1322cf1f8a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable_f5ea9ae0-e70d-4fa3-9910-972ce0570862" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfTreasuryStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_df4c00ea-fe66-470b-a14c-7981d0617ef0" xlink:to="loc_us-gaap_ClassOfTreasuryStockTable_f5ea9ae0-e70d-4fa3-9910-972ce0570862" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramAxis_e6556a6f-ec74-4b45-a6b5-b3a45a929d76" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareRepurchaseProgramAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_f5ea9ae0-e70d-4fa3-9910-972ce0570862" xlink:to="loc_us-gaap_ShareRepurchaseProgramAxis_e6556a6f-ec74-4b45-a6b5-b3a45a929d76" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_e6556a6f-ec74-4b45-a6b5-b3a45a929d76_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_e6556a6f-ec74-4b45-a6b5-b3a45a929d76" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_e6556a6f-ec74-4b45-a6b5-b3a45a929d76_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_14d63625-3e55-4412-82ac-7891ef47a330" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_e6556a6f-ec74-4b45-a6b5-b3a45a929d76" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_14d63625-3e55-4412-82ac-7891ef47a330" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_OpenMarketShareRepurchaseMember_12aef117-3e3d-4f63-ab05-81b778f73ef2" xlink:href="ueic-20230630.xsd#ueic_OpenMarketShareRepurchaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_14d63625-3e55-4412-82ac-7891ef47a330" xlink:to="loc_ueic_OpenMarketShareRepurchaseMember_12aef117-3e3d-4f63-ab05-81b778f73ef2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_StockBasedCompensationShareRepurchaseMember_fec25efe-01e2-4d8a-a039-8e56f8b445b1" xlink:href="ueic-20230630.xsd#ueic_StockBasedCompensationShareRepurchaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_14d63625-3e55-4412-82ac-7891ef47a330" xlink:to="loc_ueic_StockBasedCompensationShareRepurchaseMember_fec25efe-01e2-4d8a-a039-8e56f8b445b1" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/StockBasedCompensationStockbasedCompensationExpenseandRelatedIncomeTaxBenefitDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#StockBasedCompensationStockbasedCompensationExpenseandRelatedIncomeTaxBenefitDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/StockBasedCompensationStockbasedCompensationExpenseandRelatedIncomeTaxBenefitDetails" xlink:type="extended" id="i1133682d063f4819b1d4fde76d129611_StockBasedCompensationStockbasedCompensationExpenseandRelatedIncomeTaxBenefitDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_704bb138-a92a-4261-88a8-0207e810b105" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_476c2559-1363-4dbb-9879-293726cf800c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_704bb138-a92a-4261-88a8-0207e810b105" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_476c2559-1363-4dbb-9879-293726cf800c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_cffdff54-8e61-4962-8f3e-fcd98692efd6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_704bb138-a92a-4261-88a8-0207e810b105" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_cffdff54-8e61-4962-8f3e-fcd98692efd6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_f1cadd74-53d1-413d-aefa-0edfde4528aa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_704bb138-a92a-4261-88a8-0207e810b105" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_f1cadd74-53d1-413d-aefa-0edfde4528aa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_5f2b2070-5a3f-426c-84a7-cacca8835c3e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_f1cadd74-53d1-413d-aefa-0edfde4528aa" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_5f2b2070-5a3f-426c-84a7-cacca8835c3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_5f2b2070-5a3f-426c-84a7-cacca8835c3e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_5f2b2070-5a3f-426c-84a7-cacca8835c3e" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_5f2b2070-5a3f-426c-84a7-cacca8835c3e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_042a277c-a6c7-4572-b4dd-21159e74748e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_5f2b2070-5a3f-426c-84a7-cacca8835c3e" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_042a277c-a6c7-4572-b4dd-21159e74748e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_a5e1ed01-f8d7-4f0b-ab49-36ff521b3675" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_042a277c-a6c7-4572-b4dd-21159e74748e" xlink:to="loc_us-gaap_CostOfSalesMember_a5e1ed01-f8d7-4f0b-ab49-36ff521b3675" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_a62b004a-65fd-433e-a9c6-b8dd484f6cf8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_042a277c-a6c7-4572-b4dd-21159e74748e" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_a62b004a-65fd-433e-a9c6-b8dd484f6cf8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_fa265e5a-4f3a-41db-b7e8-0c3b1bdc6160" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_042a277c-a6c7-4572-b4dd-21159e74748e" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_fa265e5a-4f3a-41db-b7e8-0c3b1bdc6160" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GranteeStatusAxis_fd12d754-e73f-4e16-a111-3354e25f9614" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GranteeStatusAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_f1cadd74-53d1-413d-aefa-0edfde4528aa" xlink:to="loc_us-gaap_GranteeStatusAxis_fd12d754-e73f-4e16-a111-3354e25f9614" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GranteeStatusDomain_fd12d754-e73f-4e16-a111-3354e25f9614_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GranteeStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_GranteeStatusAxis_fd12d754-e73f-4e16-a111-3354e25f9614" xlink:to="loc_us-gaap_GranteeStatusDomain_fd12d754-e73f-4e16-a111-3354e25f9614_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GranteeStatusDomain_3e19c1a8-7f3f-43a0-b7f2-4a5b22b1fbd7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GranteeStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_GranteeStatusAxis_fd12d754-e73f-4e16-a111-3354e25f9614" xlink:to="loc_us-gaap_GranteeStatusDomain_3e19c1a8-7f3f-43a0-b7f2-4a5b22b1fbd7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedPaymentArrangementEmployeeMember_ff046544-6b7b-451a-93d6-afc3efd0d088" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedPaymentArrangementEmployeeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GranteeStatusDomain_3e19c1a8-7f3f-43a0-b7f2-4a5b22b1fbd7" xlink:to="loc_us-gaap_ShareBasedPaymentArrangementEmployeeMember_ff046544-6b7b-451a-93d6-afc3efd0d088" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedPaymentArrangementNonemployeeMember_c08cc81f-0169-4cb6-8773-19f038537c10" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedPaymentArrangementNonemployeeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GranteeStatusDomain_3e19c1a8-7f3f-43a0-b7f2-4a5b22b1fbd7" xlink:to="loc_us-gaap_ShareBasedPaymentArrangementNonemployeeMember_c08cc81f-0169-4cb6-8773-19f038537c10" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/StockBasedCompensationNarrativeDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#StockBasedCompensationNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/StockBasedCompensationNarrativeDetails" xlink:type="extended" id="i3e022e9cee414aa499137fad99aa75d2_StockBasedCompensationNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5c1fd15e-9bbf-4fee-a5e4-f42f34bcd4b1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_025ed9b4-72f1-4924-9d2a-05e1cac97021" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5c1fd15e-9bbf-4fee-a5e4-f42f34bcd4b1" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_025ed9b4-72f1-4924-9d2a-05e1cac97021" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_206ae829-18f0-4f2b-a0d1-8dc7d47916f3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5c1fd15e-9bbf-4fee-a5e4-f42f34bcd4b1" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_206ae829-18f0-4f2b-a0d1-8dc7d47916f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f384a85-8ce5-471c-8109-744410f89682" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5c1fd15e-9bbf-4fee-a5e4-f42f34bcd4b1" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f384a85-8ce5-471c-8109-744410f89682" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_109ba56b-e07c-4944-af7a-510dd1c00026" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_5f384a85-8ce5-471c-8109-744410f89682" xlink:to="loc_us-gaap_AwardTypeAxis_109ba56b-e07c-4944-af7a-510dd1c00026" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_109ba56b-e07c-4944-af7a-510dd1c00026_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_109ba56b-e07c-4944-af7a-510dd1c00026" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_109ba56b-e07c-4944-af7a-510dd1c00026_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3ef1bf73-a549-4f43-9401-f212d76db9ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_109ba56b-e07c-4944-af7a-510dd1c00026" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3ef1bf73-a549-4f43-9401-f212d76db9ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_d6a7d830-13ca-4785-9467-d60e088a39ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3ef1bf73-a549-4f43-9401-f212d76db9ee" xlink:to="loc_us-gaap_EmployeeStockOptionMember_d6a7d830-13ca-4785-9467-d60e088a39ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_361e696e-4ca0-4284-ae22-a49f17bb7c8d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3ef1bf73-a549-4f43-9401-f212d76db9ee" xlink:to="loc_us-gaap_RestrictedStockMember_361e696e-4ca0-4284-ae22-a49f17bb7c8d" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#PerformanceBasedCommonStockWarrantsDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/PerformanceBasedCommonStockWarrantsDetails" xlink:type="extended" id="i98a6d1cd5c4f43249b193a7ff211ff43_PerformanceBasedCommonStockWarrantsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_f6342aa4-a07f-492f-803e-6a64f1f1bd40" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_4f1abbaf-1e92-4730-9f6f-26231b7c22a1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_f6342aa4-a07f-492f-803e-6a64f1f1bd40" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_4f1abbaf-1e92-4730-9f6f-26231b7c22a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_ClassofWarrantorRightVestedWarrantsOutstanding_2648022a-bd2e-4690-b74d-e904032b792b" xlink:href="ueic-20230630.xsd#ueic_ClassofWarrantorRightVestedWarrantsOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_f6342aa4-a07f-492f-803e-6a64f1f1bd40" xlink:to="loc_ueic_ClassofWarrantorRightVestedWarrantsOutstanding_2648022a-bd2e-4690-b74d-e904032b792b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_fa51f254-ffb8-4f92-b47e-f7c1af74b6b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_f6342aa4-a07f-492f-803e-6a64f1f1bd40" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_fa51f254-ffb8-4f92-b47e-f7c1af74b6b4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_41956152-475d-4d16-97c4-fbd9fdf042eb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_fa51f254-ffb8-4f92-b47e-f7c1af74b6b4" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_41956152-475d-4d16-97c4-fbd9fdf042eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_41956152-475d-4d16-97c4-fbd9fdf042eb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_41956152-475d-4d16-97c4-fbd9fdf042eb" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_41956152-475d-4d16-97c4-fbd9fdf042eb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_98362cfa-4045-481c-adfa-44fb12e5eea5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_41956152-475d-4d16-97c4-fbd9fdf042eb" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_98362cfa-4045-481c-adfa-44fb12e5eea5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_2892aa01-2521-42b0-a221-8a1d705ae4e9" xlink:href="ueic-20230630.xsd#ueic_CommonStockPurchaseWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_98362cfa-4045-481c-adfa-44fb12e5eea5" xlink:to="loc_ueic_CommonStockPurchaseWarrantMember_2892aa01-2521-42b0-a221-8a1d705ae4e9" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/EarningsLossPerShareSecuritiesExcludedfromtheComputationofDilutedEarningsLossPerCommonShareDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#EarningsLossPerShareSecuritiesExcludedfromtheComputationofDilutedEarningsLossPerCommonShareDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/EarningsLossPerShareSecuritiesExcludedfromtheComputationofDilutedEarningsLossPerCommonShareDetails" xlink:type="extended" id="i5114a7c086e140bfbfe6863e8a78ed2b_EarningsLossPerShareSecuritiesExcludedfromtheComputationofDilutedEarningsLossPerCommonShareDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_39fe56a7-5cc9-44a6-8ea4-245d0720c109" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_8e56c06d-a664-459e-8b23-faf912fc3b21" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_39fe56a7-5cc9-44a6-8ea4-245d0720c109" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_8e56c06d-a664-459e-8b23-faf912fc3b21" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7a67e767-887a-4dfd-bf1f-7a584fedeb3b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_39fe56a7-5cc9-44a6-8ea4-245d0720c109" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7a67e767-887a-4dfd-bf1f-7a584fedeb3b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_a83dcd6f-f64c-4ee7-abb9-574319933093" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_7a67e767-887a-4dfd-bf1f-7a584fedeb3b" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_a83dcd6f-f64c-4ee7-abb9-574319933093" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_a83dcd6f-f64c-4ee7-abb9-574319933093_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_a83dcd6f-f64c-4ee7-abb9-574319933093" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_a83dcd6f-f64c-4ee7-abb9-574319933093_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7c5a64bf-c617-4825-a0e4-ce1c43a8701a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_a83dcd6f-f64c-4ee7-abb9-574319933093" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7c5a64bf-c617-4825-a0e4-ce1c43a8701a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_6a1288ec-11d2-45ad-8cdf-3b0876cde2f8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7c5a64bf-c617-4825-a0e4-ce1c43a8701a" xlink:to="loc_us-gaap_EmployeeStockOptionMember_6a1288ec-11d2-45ad-8cdf-3b0876cde2f8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_7a001923-2518-4810-aead-128755e0e1f1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7c5a64bf-c617-4825-a0e4-ce1c43a8701a" xlink:to="loc_us-gaap_RestrictedStockMember_7a001923-2518-4810-aead-128755e0e1f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_CommonStockPurchaseWarrantMember_cedf309a-ab7b-4429-b735-533773844627" xlink:href="ueic-20230630.xsd#ueic_CommonStockPurchaseWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7c5a64bf-c617-4825-a0e4-ce1c43a8701a" xlink:to="loc_ueic_CommonStockPurchaseWarrantMember_cedf309a-ab7b-4429-b735-533773844627" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/DerivativesTotalNetFairValueofDerivativesDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#DerivativesTotalNetFairValueofDerivativesDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/DerivativesTotalNetFairValueofDerivativesDetails" xlink:type="extended" id="icd869bd570c54cc78ed6b5cdbfbb0102_DerivativesTotalNetFairValueofDerivativesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_484c9586-ce8d-437c-a8c8-2a52128ed7ba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativesFairValueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeNet_6eddd1f5-ccf9-4b0f-8056-43cadc16d831" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeFairValueOfDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_484c9586-ce8d-437c-a8c8-2a52128ed7ba" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeNet_6eddd1f5-ccf9-4b0f-8056-43cadc16d831" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_483c5798-d341-43f3-a7fb-dca909f65ccc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_484c9586-ce8d-437c-a8c8-2a52128ed7ba" xlink:to="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_483c5798-d341-43f3-a7fb-dca909f65ccc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_11320f76-7762-4211-86eb-d1e7c2ceff36" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_483c5798-d341-43f3-a7fb-dca909f65ccc" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_11320f76-7762-4211-86eb-d1e7c2ceff36" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_11320f76-7762-4211-86eb-d1e7c2ceff36_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_11320f76-7762-4211-86eb-d1e7c2ceff36" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_11320f76-7762-4211-86eb-d1e7c2ceff36_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_9c190e26-fb78-4a98-abe9-21b72e241724" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_11320f76-7762-4211-86eb-d1e7c2ceff36" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_9c190e26-fb78-4a98-abe9-21b72e241724" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_f996433c-21ac-45ba-94e6-6e64e38bc20d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_9c190e26-fb78-4a98-abe9-21b72e241724" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_f996433c-21ac-45ba-94e6-6e64e38bc20d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5938082c-2be8-46a6-8cc2-8e3a7456625f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_483c5798-d341-43f3-a7fb-dca909f65ccc" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5938082c-2be8-46a6-8cc2-8e3a7456625f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5938082c-2be8-46a6-8cc2-8e3a7456625f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5938082c-2be8-46a6-8cc2-8e3a7456625f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5938082c-2be8-46a6-8cc2-8e3a7456625f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d4f2d653-2614-4d60-b7bb-f72e51cec504" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5938082c-2be8-46a6-8cc2-8e3a7456625f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d4f2d653-2614-4d60-b7bb-f72e51cec504" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_bd8e3929-b36a-417e-9153-e51fed987f88" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d4f2d653-2614-4d60-b7bb-f72e51cec504" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_bd8e3929-b36a-417e-9153-e51fed987f88" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_cab0b71f-731e-4b59-a56c-527debb5a31c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d4f2d653-2614-4d60-b7bb-f72e51cec504" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_cab0b71f-731e-4b59-a56c-527debb5a31c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_2390e0e4-230c-475a-94b4-4782fc142517" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d4f2d653-2614-4d60-b7bb-f72e51cec504" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_2390e0e4-230c-475a-94b4-4782fc142517" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_3ad82e79-83fb-4609-b0eb-d1e8a9476f38" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_483c5798-d341-43f3-a7fb-dca909f65ccc" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_3ad82e79-83fb-4609-b0eb-d1e8a9476f38" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_3ad82e79-83fb-4609-b0eb-d1e8a9476f38_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_3ad82e79-83fb-4609-b0eb-d1e8a9476f38" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_3ad82e79-83fb-4609-b0eb-d1e8a9476f38_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_4339efec-c084-4e73-a0a4-6439903a9e5b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_3ad82e79-83fb-4609-b0eb-d1e8a9476f38" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_4339efec-c084-4e73-a0a4-6439903a9e5b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_b8772fd3-04f2-4f8d-bdab-ea093d5d37c9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_4339efec-c084-4e73-a0a4-6439903a9e5b" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_b8772fd3-04f2-4f8d-bdab-ea093d5d37c9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_82a1a979-ea8d-4536-a404-300111795e7c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_483c5798-d341-43f3-a7fb-dca909f65ccc" xlink:to="loc_us-gaap_HedgingDesignationAxis_82a1a979-ea8d-4536-a404-300111795e7c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_82a1a979-ea8d-4536-a404-300111795e7c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_82a1a979-ea8d-4536-a404-300111795e7c" xlink:to="loc_us-gaap_HedgingDesignationDomain_82a1a979-ea8d-4536-a404-300111795e7c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_8fa64ed9-9ae4-478a-845f-d383c0bdc41c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_82a1a979-ea8d-4536-a404-300111795e7c" xlink:to="loc_us-gaap_HedgingDesignationDomain_8fa64ed9-9ae4-478a-845f-d383c0bdc41c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_e6f46c67-14d5-47f3-bb0d-dd66860bd70c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_8fa64ed9-9ae4-478a-845f-d383c0bdc41c" xlink:to="loc_us-gaap_NondesignatedMember_e6f46c67-14d5-47f3-bb0d-dd66860bd70c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/DerivativesNarrativeDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#DerivativesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/DerivativesNarrativeDetails" xlink:type="extended" id="i8e902ca9917244dc8eb4af5bbe2ba2c7_DerivativesNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_ae35ea73-8b79-4557-bb31-8fd1dfafc731" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_2b6d483b-f925-49a6-b5c7-1a71a8c6f9ea" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_ae35ea73-8b79-4557-bb31-8fd1dfafc731" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_2b6d483b-f925-49a6-b5c7-1a71a8c6f9ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_fba070fd-a9d9-4d0b-bf13-429cd8308848" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_ae35ea73-8b79-4557-bb31-8fd1dfafc731" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_fba070fd-a9d9-4d0b-bf13-429cd8308848" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_5c4bf342-44d9-4b94-9943-beb8754bbe26" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_fba070fd-a9d9-4d0b-bf13-429cd8308848" xlink:to="loc_us-gaap_HedgingDesignationAxis_5c4bf342-44d9-4b94-9943-beb8754bbe26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_5c4bf342-44d9-4b94-9943-beb8754bbe26_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_5c4bf342-44d9-4b94-9943-beb8754bbe26" xlink:to="loc_us-gaap_HedgingDesignationDomain_5c4bf342-44d9-4b94-9943-beb8754bbe26_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_a0a729d9-49d0-48f5-9207-8c2015e8d46d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_5c4bf342-44d9-4b94-9943-beb8754bbe26" xlink:to="loc_us-gaap_HedgingDesignationDomain_a0a729d9-49d0-48f5-9207-8c2015e8d46d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_00c03df5-1a20-4373-b7df-49523c08ba07" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_a0a729d9-49d0-48f5-9207-8c2015e8d46d" xlink:to="loc_us-gaap_NondesignatedMember_00c03df5-1a20-4373-b7df-49523c08ba07" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_8d5d2aaf-a8ea-4d86-a241-61f1a83bc6ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_fba070fd-a9d9-4d0b-bf13-429cd8308848" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_8d5d2aaf-a8ea-4d86-a241-61f1a83bc6ad" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_8d5d2aaf-a8ea-4d86-a241-61f1a83bc6ad_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_8d5d2aaf-a8ea-4d86-a241-61f1a83bc6ad" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_8d5d2aaf-a8ea-4d86-a241-61f1a83bc6ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_8d2ef2d3-733f-4925-816a-54d01bcd7e9a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_8d5d2aaf-a8ea-4d86-a241-61f1a83bc6ad" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_8d2ef2d3-733f-4925-816a-54d01bcd7e9a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_9d072ef8-f306-4991-aee9-ad655d7f5dee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_8d2ef2d3-733f-4925-816a-54d01bcd7e9a" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_9d072ef8-f306-4991-aee9-ad655d7f5dee" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/DerivativesForeignCurrencyExchangeContractsDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#DerivativesForeignCurrencyExchangeContractsDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/DerivativesForeignCurrencyExchangeContractsDetails" xlink:type="extended" id="ib9830f6d949e486189e83d736fad7f4b_DerivativesForeignCurrencyExchangeContractsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_c51f33c5-ffd5-40d9-9807-fd807a7918f0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_ccd33d10-bd2e-4e90-8a86-a97409c3c62a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_c51f33c5-ffd5-40d9-9807-fd807a7918f0" xlink:to="loc_us-gaap_DerivativeNotionalAmount_ccd33d10-bd2e-4e90-8a86-a97409c3c62a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeForwardExchangeRate1_62129824-db38-4f92-9f30-35d73c620927" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeForwardExchangeRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_c51f33c5-ffd5-40d9-9807-fd807a7918f0" xlink:to="loc_us-gaap_DerivativeForwardExchangeRate1_62129824-db38-4f92-9f30-35d73c620927" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_d9f02468-a292-499c-bd3e-bf0f438af996" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_c51f33c5-ffd5-40d9-9807-fd807a7918f0" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_d9f02468-a292-499c-bd3e-bf0f438af996" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_817a1957-b3f8-43f8-be9d-224c8ac173bc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_c51f33c5-ffd5-40d9-9807-fd807a7918f0" xlink:to="loc_us-gaap_DerivativeTable_817a1957-b3f8-43f8-be9d-224c8ac173bc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_93c25111-610e-437f-99e1-3050d8bb830b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_817a1957-b3f8-43f8-be9d-224c8ac173bc" xlink:to="loc_us-gaap_HedgingDesignationAxis_93c25111-610e-437f-99e1-3050d8bb830b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_93c25111-610e-437f-99e1-3050d8bb830b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_93c25111-610e-437f-99e1-3050d8bb830b" xlink:to="loc_us-gaap_HedgingDesignationDomain_93c25111-610e-437f-99e1-3050d8bb830b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_b14e6872-ba0d-4c81-955b-2b3147026afd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_93c25111-610e-437f-99e1-3050d8bb830b" xlink:to="loc_us-gaap_HedgingDesignationDomain_b14e6872-ba0d-4c81-955b-2b3147026afd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_7a7ecdbd-9d73-4b82-b439-d04b4397c817" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_b14e6872-ba0d-4c81-955b-2b3147026afd" xlink:to="loc_us-gaap_NondesignatedMember_7a7ecdbd-9d73-4b82-b439-d04b4397c817" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_8113d4d6-20bb-4cb7-a290-7f14a3e8e539" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CurrencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_817a1957-b3f8-43f8-be9d-224c8ac173bc" xlink:to="loc_srt_CurrencyAxis_8113d4d6-20bb-4cb7-a290-7f14a3e8e539" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_8113d4d6-20bb-4cb7-a290-7f14a3e8e539_default" xlink:href="https://xbrl.sec.gov/currency/2023/currency-2023.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_8113d4d6-20bb-4cb7-a290-7f14a3e8e539" xlink:to="loc_currency_AllCurrenciesDomain_8113d4d6-20bb-4cb7-a290-7f14a3e8e539_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_d123873c-09aa-458e-b1ae-973b019cd929" xlink:href="https://xbrl.sec.gov/currency/2023/currency-2023.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_8113d4d6-20bb-4cb7-a290-7f14a3e8e539" xlink:to="loc_currency_AllCurrenciesDomain_d123873c-09aa-458e-b1ae-973b019cd929" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_CNY_2349cd9c-b4b2-486f-82b5-5d17e0a1dfb4" xlink:href="https://xbrl.sec.gov/currency/2023/currency-2023.xsd#currency_CNY"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_d123873c-09aa-458e-b1ae-973b019cd929" xlink:to="loc_currency_CNY_2349cd9c-b4b2-486f-82b5-5d17e0a1dfb4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_EUR_af18e9a6-6257-4cf1-b05c-ce130ca5b463" xlink:href="https://xbrl.sec.gov/currency/2023/currency-2023.xsd#currency_EUR"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_d123873c-09aa-458e-b1ae-973b019cd929" xlink:to="loc_currency_EUR_af18e9a6-6257-4cf1-b05c-ce130ca5b463" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/BusinessCombinationNarrativeDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#BusinessCombinationNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/BusinessCombinationNarrativeDetails" xlink:type="extended" id="ic9c3c8827ea04cd58e2e98552172a06d_BusinessCombinationNarrativeDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_2e328a3d-23bb-4027-9faf-304440b5b281" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_ff81c28f-8333-463e-a8a9-a2a71ec79e64" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_2e328a3d-23bb-4027-9faf-304440b5b281" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_ff81c28f-8333-463e-a8a9-a2a71ec79e64" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_8b26b32b-8a4c-4784-b40e-9b14c5b1fb80" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_2e328a3d-23bb-4027-9faf-304440b5b281" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_8b26b32b-8a4c-4784-b40e-9b14c5b1fb80" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_8dadc787-b893-4fd5-974d-9129c60b9afd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_2e328a3d-23bb-4027-9faf-304440b5b281" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_8dadc787-b893-4fd5-974d-9129c60b9afd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_ffea1dcd-0e50-4fcd-8d92-0b76708ad7c6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_2e328a3d-23bb-4027-9faf-304440b5b281" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_ffea1dcd-0e50-4fcd-8d92-0b76708ad7c6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_acf4f446-73fa-4559-bcb7-2abfec5621fd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_ffea1dcd-0e50-4fcd-8d92-0b76708ad7c6" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_acf4f446-73fa-4559-bcb7-2abfec5621fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_acf4f446-73fa-4559-bcb7-2abfec5621fd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_acf4f446-73fa-4559-bcb7-2abfec5621fd" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_acf4f446-73fa-4559-bcb7-2abfec5621fd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_a5ef71fd-dc93-4f90-a06e-5418fc24afa2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_acf4f446-73fa-4559-bcb7-2abfec5621fd" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_a5ef71fd-dc93-4f90-a06e-5418fc24afa2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_QtericsIncMember_317f1da9-e204-4e74-9852-4d0a8cede23e" xlink:href="ueic-20230630.xsd#ueic_QtericsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_a5ef71fd-dc93-4f90-a06e-5418fc24afa2" xlink:to="loc_ueic_QtericsIncMember_317f1da9-e204-4e74-9852-4d0a8cede23e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.uei.com/role/BusinessCombinationPurchasePriceAllocationDetails" xlink:type="simple" xlink:href="ueic-20230630.xsd#BusinessCombinationPurchasePriceAllocationDetails"/>
  <link:definitionLink xlink:role="http://www.uei.com/role/BusinessCombinationPurchasePriceAllocationDetails" xlink:type="extended" id="i0e0f11b3f98c45f8941c9bf5934f5af7_BusinessCombinationPurchasePriceAllocationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_f6c6601e-dfe8-4d77-8979-9ef3a7020da4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_f6c6601e-dfe8-4d77-8979-9ef3a7020da4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_e0b4e859-4ed4-4f11-bc76-46855d6a848d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_e0b4e859-4ed4-4f11-bc76-46855d6a848d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_db92e968-1a82-4d8a-899a-798fcc982339" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_db92e968-1a82-4d8a-899a-798fcc982339" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_82862249-f210-4736-9ab3-36852cbffaed" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_82862249-f210-4736-9ab3-36852cbffaed" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_fe12efc1-4d29-4b3b-aff7-acb2d7d325b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_fe12efc1-4d29-4b3b-aff7-acb2d7d325b8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_5a213626-cf45-4415-bc76-192eae026163" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_5a213626-cf45-4415-bc76-192eae026163" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_22323a15-cb20-4df8-a792-8ca47c520129" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_Goodwill_22323a15-cb20-4df8-a792-8ca47c520129" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightOfUseAssets_c79f99a0-b7ae-4d5a-9138-c91a7483ca8a" xlink:href="ueic-20230630.xsd#ueic_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightOfUseAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_ueic_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRightOfUseAssets_c79f99a0-b7ae-4d5a-9138-c91a7483ca8a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_96cb4635-9f5e-4811-aee2-e1d0db6cfc43" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_96cb4635-9f5e-4811-aee2-e1d0db6cfc43" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_cbf3d2f4-7cef-46c5-ad19-5e6f4ce127bd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_cbf3d2f4-7cef-46c5-ad19-5e6f4ce127bd" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation_6599cf00-a2a3-4b20-9fb6-be3cb5e14d5a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCapitalLeaseObligation_6599cf00-a2a3-4b20-9fb6-be3cb5e14d5a" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_e743330a-44ba-4600-b69f-09fc303036ff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_e743330a-44ba-4600-b69f-09fc303036ff" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseObligationNoncurrent_26163d49-2ea0-4356-a8a7-9481574f86d3" xlink:href="ueic-20230630.xsd#ueic_BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseObligationNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_ueic_BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedLeaseObligationNoncurrent_26163d49-2ea0-4356-a8a7-9481574f86d3" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesDeferredRevenue_42c598ff-30d6-457d-b9fd-127099ea0337" xlink:href="ueic-20230630.xsd#ueic_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesDeferredRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_ueic_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesDeferredRevenue_42c598ff-30d6-457d-b9fd-127099ea0337" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8762a64b-6d86-4e82-a117-c52e9fc6ebdd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_8762a64b-6d86-4e82-a117-c52e9fc6ebdd" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c5d20847-46cf-47c3-a1f0-2852e1724079" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_4f98ebf6-6089-4241-8a3b-657917f9da03" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c5d20847-46cf-47c3-a1f0-2852e1724079" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_bf185432-375e-43f3-9d1b-2349173eafbe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c5d20847-46cf-47c3-a1f0-2852e1724079" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_bf185432-375e-43f3-9d1b-2349173eafbe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_bf185432-375e-43f3-9d1b-2349173eafbe_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_bf185432-375e-43f3-9d1b-2349173eafbe" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_bf185432-375e-43f3-9d1b-2349173eafbe_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4048065d-24f8-428f-ba87-3ca631271114" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_bf185432-375e-43f3-9d1b-2349173eafbe" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4048065d-24f8-428f-ba87-3ca631271114" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_ab43b10d-7ac3-4d14-b5ac-068e6cdf1cef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4048065d-24f8-428f-ba87-3ca631271114" xlink:to="loc_us-gaap_CustomerRelationshipsMember_ab43b10d-7ac3-4d14-b5ac-068e6cdf1cef" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_2e136853-2800-43d4-b291-35da0b1fd66e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TechnologyBasedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4048065d-24f8-428f-ba87-3ca631271114" xlink:to="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_2e136853-2800-43d4-b291-35da0b1fd66e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_708b60a4-09cb-494a-b4a7-8d341bea54c5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4048065d-24f8-428f-ba87-3ca631271114" xlink:to="loc_us-gaap_TradeNamesMember_708b60a4-09cb-494a-b4a7-8d341bea54c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_38a3c99b-2707-45bf-b18a-9a10a0b60f31" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c5d20847-46cf-47c3-a1f0-2852e1724079" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_38a3c99b-2707-45bf-b18a-9a10a0b60f31" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_38a3c99b-2707-45bf-b18a-9a10a0b60f31_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_38a3c99b-2707-45bf-b18a-9a10a0b60f31" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_38a3c99b-2707-45bf-b18a-9a10a0b60f31_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e60d4d9c-8b8b-4a11-8c26-7f40e31ed366" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_38a3c99b-2707-45bf-b18a-9a10a0b60f31" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e60d4d9c-8b8b-4a11-8c26-7f40e31ed366" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ueic_QtericsIncMember_672ce172-0771-4e3d-8875-a8cb7c740015" xlink:href="ueic-20230630.xsd#ueic_QtericsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_e60d4d9c-8b8b-4a11-8c26-7f40e31ed366" xlink:to="loc_ueic_QtericsIncMember_672ce172-0771-4e3d-8875-a8cb7c740015" 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/2023/elts/us-roles-2023.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/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#AwardTypeOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_RestrictedStockMember" xlink:type="arc" order="4"/>
  </link:definitionLink>
</link:linkbase>
