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

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:ee5f3736-dd76-475b-b356-ff1d62d30078,g:a1b06e34-559d-4fb8-b678-a07c1c7b676e-->
<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.unitedcontinentalholdings.com/role/DocumentandEntityInformation" xlink:type="simple" xlink:href="ual-20210525.xsd#DocumentandEntityInformation"/>
  <link:definitionLink xlink:role="http://www.unitedcontinentalholdings.com/role/DocumentandEntityInformation" xlink:type="extended" id="i6cc1dc7d7ce9446e85cce4e0b62acbbd_DocumentandEntityInformation">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_07f8fefd-9739-4777-9629-fd1c0ea342f4" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_DocumentType_07f8fefd-9739-4777-9629-fd1c0ea342f4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_88f310ae-f8ed-44a5-ac9d-8031f8946f76" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_AmendmentFlag_88f310ae-f8ed-44a5-ac9d-8031f8946f76" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_9b20fecb-69a7-44e9-8a5c-694aad48468f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_DocumentPeriodEndDate_9b20fecb-69a7-44e9-8a5c-694aad48468f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_d2faa64a-717b-4065-a6f6-793ac28c63ae" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityRegistrantName_d2faa64a-717b-4065-a6f6-793ac28c63ae" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_1377c29b-6d3f-4f94-9d87-eae3ccd29d74" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityCentralIndexKey_1377c29b-6d3f-4f94-9d87-eae3ccd29d74" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_46a157f4-206c-4843-be8f-23bf5993cdbf" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityIncorporationStateCountryCode_46a157f4-206c-4843-be8f-23bf5993cdbf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_9e6446b6-0bb6-4bd3-bc9b-d38c0b43f384" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityFileNumber_9e6446b6-0bb6-4bd3-bc9b-d38c0b43f384" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_cb3a1ac1-f6a1-46d0-a854-c2bc5f683cdc" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityAddressAddressLine1_cb3a1ac1-f6a1-46d0-a854-c2bc5f683cdc" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_c4faf185-e5b4-40a7-8674-320f714d4755" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityAddressCityOrTown_c4faf185-e5b4-40a7-8674-320f714d4755" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_27d7b05f-5e53-4375-87ee-b5e417b0afaa" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityAddressStateOrProvince_27d7b05f-5e53-4375-87ee-b5e417b0afaa" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_e20510e2-1663-474f-ae0c-95b32bc88fbb" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityAddressPostalZipCode_e20510e2-1663-474f-ae0c-95b32bc88fbb" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_0d40b3f2-c8fb-42c6-88ba-7eb77ff18a8d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_CityAreaCode_0d40b3f2-c8fb-42c6-88ba-7eb77ff18a8d" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_45abe66f-1a6b-4a09-8a83-a8d947e6f41a" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_LocalPhoneNumber_45abe66f-1a6b-4a09-8a83-a8d947e6f41a" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_0ff418f1-cd0c-419d-aa77-3e02bfa3497d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_WrittenCommunications_0ff418f1-cd0c-419d-aa77-3e02bfa3497d" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_450bac2f-0b77-4b04-8a4e-9a86bd92d0d6" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_SolicitingMaterial_450bac2f-0b77-4b04-8a4e-9a86bd92d0d6" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_6e0939ae-90ee-45f1-8202-578e701afb8d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_PreCommencementTenderOffer_6e0939ae-90ee-45f1-8202-578e701afb8d" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_977fa5d6-85be-470b-9f12-b0148098d520" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_977fa5d6-85be-470b-9f12-b0148098d520" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_ecdd2254-0138-4856-b401-9ac58bd41b5b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_Security12bTitle_ecdd2254-0138-4856-b401-9ac58bd41b5b" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_a41e2e0c-72da-4bc9-b658-459c0e73390f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_SecurityExchangeName_a41e2e0c-72da-4bc9-b658-459c0e73390f" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_59296311-e123-467a-9250-912ddb500bdc" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityEmergingGrowthCompany_59296311-e123-467a-9250-912ddb500bdc" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_NoTradingSymbolFlag_a7bf69bf-9e9d-4df5-b592-a7b04c3d3224" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_NoTradingSymbolFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_NoTradingSymbolFlag_a7bf69bf-9e9d-4df5-b592-a7b04c3d3224" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_34b3c748-bb24-4b81-8b80-59f3c04abfaf" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_TradingSymbol_34b3c748-bb24-4b81-8b80-59f3c04abfaf" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_535a7a77-8111-487d-ba19-11eff6e06c71" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntityTaxIdentificationNumber_535a7a77-8111-487d-ba19-11eff6e06c71" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable_c5c1288b-36e0-42a6-be57-b20c89ee381a" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityInformationLineItems_5910891f-c5aa-481f-b24b-253b327c1adf" xlink:to="loc_dei_EntitiesTable_c5c1288b-36e0-42a6-be57-b20c89ee381a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_1684687b-7d0d-44cc-a6bb-f1d5d4cf782c" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_c5c1288b-36e0-42a6-be57-b20c89ee381a" xlink:to="loc_dei_LegalEntityAxis_1684687b-7d0d-44cc-a6bb-f1d5d4cf782c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_1684687b-7d0d-44cc-a6bb-f1d5d4cf782c_default" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_1684687b-7d0d-44cc-a6bb-f1d5d4cf782c" xlink:to="loc_dei_EntityDomain_1684687b-7d0d-44cc-a6bb-f1d5d4cf782c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_7743d03f-6f64-4f52-992b-17b095c276d4" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_1684687b-7d0d-44cc-a6bb-f1d5d4cf782c" xlink:to="loc_dei_EntityDomain_7743d03f-6f64-4f52-992b-17b095c276d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ual_UnitedAirLinesIncMember_c2fbab4b-4897-44bf-a86b-0c52e5ffeec3" xlink:href="ual-20210525.xsd#ual_UnitedAirLinesIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_7743d03f-6f64-4f52-992b-17b095c276d4" xlink:to="loc_ual_UnitedAirLinesIncMember_c2fbab4b-4897-44bf-a86b-0c52e5ffeec3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_de65726f-211f-426f-ac59-bf975b27e10c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_c5c1288b-36e0-42a6-be57-b20c89ee381a" xlink:to="loc_us-gaap_StatementClassOfStockAxis_de65726f-211f-426f-ac59-bf975b27e10c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_de65726f-211f-426f-ac59-bf975b27e10c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_de65726f-211f-426f-ac59-bf975b27e10c" xlink:to="loc_us-gaap_ClassOfStockDomain_de65726f-211f-426f-ac59-bf975b27e10c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_236b2bae-7ba3-45a3-934c-b4b428a5b25d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_de65726f-211f-426f-ac59-bf975b27e10c" xlink:to="loc_us-gaap_ClassOfStockDomain_236b2bae-7ba3-45a3-934c-b4b428a5b25d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_611c9e05-9007-4d01-9971-faa1c07b63ac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_236b2bae-7ba3-45a3-934c-b4b428a5b25d" xlink:to="loc_us-gaap_WarrantMember_611c9e05-9007-4d01-9971-faa1c07b63ac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_4ed8a09e-46b2-45eb-8f70-6f23af1755d6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_236b2bae-7ba3-45a3-934c-b4b428a5b25d" xlink:to="loc_us-gaap_CommonStockMember_4ed8a09e-46b2-45eb-8f70-6f23af1755d6" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
