a steroidal hormone, CHO, secreted by the corpus luteum or prepared synthetically, active in preparing the uterus for the reception and development of the fertilized ovum and the mammary glands for milk secretion
Origin of progesteronepro- + ge(station) + ster(ol) + -one
- A steroid hormone, C21H30O2, that is secreted by the corpus luteum of the ovary and by the placenta and that acts to prepare the uterus for implantation of the fertilized ovum and to maintain pregnancy.
- This compound formulated as a drug, usually prepared synthetically from phytosterols, used in the treatment of infertility, amenorrhea, abnormal uterine bleeding, and certain other conditions.
Origin of progesteronepro- 1 gest(ation) (st)er(ol) -one
- (biochemistry, steroids, 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.
- (biochemistry, steroids, countable) A synthetic version of the compound, used in contraceptive pills and other pharmaceutical products.