from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A natural or synthetic progestational substance that mimics some or all of the actions of progesterone.
- n. A crude hormone of the corpus luteum from which progesterone can be isolated in pure form. No longer in scientific use.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A synthetic progestagen intended to mimic the effects of progesterone, often for contraceptive purposes.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of a group of steroid hormones that have the effect of progesterone
pro-1 + gest(ation) + -in.(American Heritage® Dictionary of the English Language, Fourth Edition)