- 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 of estrogen
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for estrogen
In fact, the estrogen that they employed did worse than castrate the subject—it could act as a cerebral depressant.The Castration of Alan Turing, Britain’s Code-Breaking WWII Hero
November 29, 2014
All 10 girls were in every single day, so there was a lot of estrogen.Anna Kendrick on ‘Pitch Perfect 2,’ Drunken Horror Stories, and Singin’ Pharrell
July 24, 2014
It has an enormous dose of estrogen in it, leading to many voluptuous prisoners in New York state prisons.Tales of a Jailhouse Gourmet: How I learned to Cook in Prison
June 21, 2014
Orange Is the New Black returns to Netflix with a wildly addictive potion of darkness, estrogen, and one-liners.‘Orange Is the New Black’ Season Two Is More Bingeworthy Than the First
May 16, 2014
Manning would likely be prescribed some form of estrogen that would be taken orally, through injection, or by a skin patch.Hormone Therapy Is More Than Just a Physical Process
August 22, 2013
- the usual US spelling of oestrogen
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
Word Origin and History for estrogen
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.estrin
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.