anti-estrogen

es·tro·gen

[es-truh-juhn]
noun Biochemistry.
any of several major female sex hormones produced primarily by the ovarian follicles of female mammals, capable of inducing estrus, developing and maintaining secondary female sex characteristics, and preparing the uterus for the reception of a fertilized egg: used, especially in synthetic form, as a component of oral contraceptives, in certain cancer treatments, and in other therapies.

Origin:
1925–30; estr(us) + -o- + -gen

an·ti·es·tro·gen, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To anti-estrogen
00:10
Anti-estrogen is always a great word to know.
So is bezoar. Does it mean:
a chattering or flighty, light-headed person.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Collins
World English Dictionary
estrogen (ˈɛstrədʒən, ˈiːstrə-) [Click for IPA pronunciation guide]
 
n
the usual US spelling of oestrogen
 
estrogenic
 
adj
 
estro'genically
 
adv

oestrogen or estrogen (ˈiːstrədʒən, ˈɛstrə-) [Click for IPA pronunciation guide]
 
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
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

estrogen
coined 1927 from estrus + -gen "producing."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

estrogen es·tro·gen or oes·tro·gen (ěs'trə-jən)
n.
Any of several natural or synthetic substances formed by the ovary, placenta, testis, and certain plants, that stimulate the female secondary sex characteristics, exert systemic effects such as the growth and maturation of long bones, and are used to treat disorders due to estrogen deficiency and to ameliorate cancers of the breast and prostate. Also called estrin.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
estrogen   (ěs'trə-jən)  Pronunciation Key 
Any of a group of steroid hormones that primarily regulate the growth, development, and function of the female reproductive system. The main sources of estrogen in the body are the ovaries and the placenta. Estrogen-like compounds are also formed by certain plants.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary
estrogen [(es-truh-juhn)]

A group of hormones, secreted mainly by the ovaries, that influence the female reproductive system in many ways, notably in preparing the body for ovulation and in the development of female secondary sex characteristics.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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