An isoantibody that causes agglutination of cells of genetically different members of the same species. SYN: isohemagglutinin.
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iso·ag·glu·ti·nin .ī-(.)sō-ə-'glüt-ən-ən n an antibody produced by one individual that causes agglutination of cells (as red blood cells) of other individuals of the same species
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n.
one of the antibodies occurring naturally in the plasma that cause agglutination of red blood cells of a different group.
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iso·ag·glu·ti·nin (i″so-ə-glooґtĭ-nin) an agglutinin from members of a species that agglutinates cells of genetically different members of the same species.Medical dictionary. 2011.