gonadotropin n 1: hormone secreted by the anterior pituitary gland and placenta; stimulates the gonads and controls reproductive activity [syn: {gonadotropin}, {gonadotrophin}, {gonadotropic hormone}, {gonadotrophic hormone}]
gonadotropin \gonadotropin\ 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]