Progesterone

Full definition of progesterone

Noun

1. (steroid hormone, uncountable) 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.
2. (steroid drug, countable) A synthetic version of the compound, used in contraceptive pills and other pharmaceutical products.

Derived terms

• dihydroprogesterone
• tetrahydroprogesterone