oestrogen

World English Dictionary
oestrogen or estrogen (ˈiːstrədʒən, ˈɛstrə-)
 
n
any of several steroid hormones, that are secreted chiefly by the ovaries and placenta, that induce oestrus, stimulate changes in the female reproductive organs during the oestrous cycle, and promote development of female secondary sexual characteristics
 
[C20: from oestrus + -gen]
 
estrogen or estrogen
 
n
 
[C20: from oestrus + -gen]
 
oestrogenic or estrogen
 
adj
 
estrogenic or estrogen
 
adj
 
oestro'genically or estrogen
 
adv
 
estro'genically or estrogen
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

oestrogen
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

oestrogen oes·tro·gen (ěs'trə-jən)
n.
Variant of estrogen.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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