progesterone

Definition of progesterone
National Cancer Institute

progesterone

(proh-JES-teh-rone)
A type of hormone made by the body that plays a role in the menstrual cycle and pregnancy. Progesterone can also be made in the laboratory. It may be used as a type of birth control and to treat menstrual disorders, infertility, symptoms of menopause, and other conditions.

Source: NCI Dictionary of Cancer Terms