from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An estrogenic hormone, C18H22O2, used primarily in the treatment of estrogen deficiency. Also called theelin.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An estrogenic hormone excreted by the ovaries; sometimes manufactured synthetically for use in cases of estrogen deficiency.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency
estr(us) + -one.(American Heritage® Dictionary of the English Language, Fourth Edition)