Medical Dictionary


noun au·to·an·ti·gen \ˌt-(ˌ)ō-ˈant-i-ˌjen\

Medical Definition of AUTOANTIGEN

:  an antigen that is a normal bodily constituent and against which the immune system produces autoantibodies
au·to·an·ti·gen·ic \-ˌant-i-ˈjen-ik\ adjective


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