Pronunciation: (an'ti-bod"ē mē'dē-ā"tid, an'tē-), [key] Immunol.
immunity conferred to an individual through the activity of B cells and their progeny, which produce circulating antibodies in response to the presence of a foreign substance and recognize the substance upon renewed exposure. Also called humoral immunity. Cf. cell-mediated immunity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.