from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A hormone produced by the placenta that maintains the corpus luteum during pregnancy.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A peptide hormone, produced during pregnancy, that prevents the breakdown of the corpus luteum and maintains progesterone production.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. hormone produced early in pregnancy by the placenta; detection in the urine and serum is the basis for one kind of pregnancy test
Sorry, no etymologies found.