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British Dictionary definitions for oestrogen

oestrogen

US estrogen

noun
  1. 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
Derived Formsoestrogenic (ˌiːstrəˈdʒɛnɪk, ˌɛstrə-) or US estrogenic (ˌɛstrəˈdʒɛnɪk, ˌiːstrə-), adjectiveoestrogenically or US estrogenically, adverb

Word Origin

C20: from oestrus + -gen
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Word Origin and History for oestrogen

n.

see estrogen.

Online Etymology Dictionary, © 2010 Douglas Harper

oestrogen in Medicine

oestrogen

(ĕstrə-jən)
n.
  1. Variant ofestrogen