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alloantigen

[ al-oh-an-ti-juhn, -jen ]
/ ˌæl oʊˈæn tɪ dʒən, -ˌdʒɛn /
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noun Immunology.
an antigen present in some but not all individuals of the same species, as those in different human blood groups.
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Origin of alloantigen

First recorded in 1965–70; allo- + antigen
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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