n.; pl.Gonads [ Gr. &unr_; that which generates. ] (Anat.) One of the masses of generative tissue primitively alike in both sexes, but giving rise to either an ovary or a testis; a generative gland; a germ gland. Wiedersheim. [ 1913 Webster ]
n. (Physiology) A hormone secreted by the pituitary gland and placenta, which stimulates the gonads and controls reproductive activity. Syn. --gonadotropic hormone. [ WordNet 1.5 ]