go·nad·o·tro·pin 
(gō-năd′ə-trōpĭn, -trŏpĭn) also go·nad·o·tro·phin (-trōfĭn, -trōpĭn)
(gō-năd′ə-trōpĭn, -trŏpĭn) also go·nad·o·tro·phin (-trōfĭn, -trōpĭn)n.
A hormone that stimulates the growth and activity of the gonads, especially any of several pituitary hormones that stimulate the function of the ovaries and testes.
[GONAD + -TROPIN.]