gonadotrophin

gonadotrophin |ˌgəʊnadə (ʊ )ˈtrəʊfɪn |(also gonadotropin |-ˈtrəʊpɪn, -ˈtrɒpɪn |) ▶noun Biochemistry any of a group of hormones secreted by the pituitary which stimulate the activity of the gonads.