heterocytotropic antibody

het·er·o·cy·to·trop·ic an·ti·bod·y

a cytotropic antibody (chiefly of the IgG class) similar in activity to homocytotropic antibody, but having an affinity for cells of a different species rather than for cells of the same or a closely related species.

het·er·o·cy·to·tro·pic an·ti·bod·y

(het'ĕr-ō-sī'tō-trō'pik an'ti-bod-ē) A cytotropic antibody (chiefly of the IgG class) similar in activity to homocytotropic antibody, but having an affinity for cells of a different species rather than for cells of the same or a closely related species.