progesterone
Pronunciation:
/pɹəˈdʒɛstəɹəʊn//pɹoʊˈdʒɛstəˌɹoʊn/noun
Definitions
A steroid hormone, secreted by the ovaries, whose function is to prepare the uterus for the implantation of a fertilized ovum and to maintain pregnancy.
(steroid drug) A synthetic version of the compound, used in contraceptive pills and other pharmaceutical products.