Medical Dictionary
alloantigen
noun al·lo·an·ti·gen \ˌal-ō-ˈant-ə-jən\
Medical Definition of ALLOANTIGEN
: a genetically determined antigen present in some but not all individuals of a species (as those of a particular blood group) and capable of inducing the production of an alloantibody by individuals which lack it—called also isoantigen
—al·lo·an·ti·gen·ic \-ˌant-ə-ˈjen-ik\ adjective
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