isoagglutinin /ī′sō·əglo̅o̅″tinin/ [Gk, isos, equal; L, agglutinate, to glue] , an antibody that causes agglutination of erythrocytes in other members of the same species that carry the corresponding antigen on their erythrocytes. Also called isohemagglutinin. See also ABO blood group, antibody.
