Dictionary
pro•ges•ter•one
Pronunciation: (prō-jes'tu-rōn"), [key]—
n.
1. Biochem.a hormone, C
21H
30O
2, that prepares the uterus for the fertilized ovum and maintains pregnancy.
2. Pharm.a commercial form of this compound, obtained from the corpus luteum of pregnant sows or synthesized: used in the treatment of dysfunctional uterine bleeding, dysmenorrhea, threatened or recurrent abortion, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.