isoantigen
(redirected from isoantigenicity)Also found in: Medical, Encyclopedia.
i·so·an·ti·gen
(ī′sō-ăn′tĭ-jən)n.
A protein or other substance, such as histocompatibility or red blood cell antigens, that is present in only some members of a species and therefore able to stimulate isoantibody production in other members of the same species who lack it. Also called alloantigen.
i′so·an′ti·gen′ic (-jĕn′ĭk) adj.
i′so·an′ti·ge·nic′i·ty (-jə-nĭs′ĭ-tē) n.
isoantigen
(ˌaɪsəʊˈæntɪdʒən)n
(Physiology) immunol an antigen that stimulates antibody production in different members of the same species
i•so•an•ti•gen
(ˌaɪ soʊˈæn tɪ dʒən, -ˌdʒɛn)n.
(formerly) an alloantigen.