any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings; many have important physiological effects

an androgenic hormone that is less active than testosterone

a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency

a corticosteroid hormone (trade name Cortone Acetate) normally produced by the adrenal cortex; is converted to hydrocortisone