estrogen
noun
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Definition of estrogen
: any of various natural steroids (such as estradiol) that are formed from androgen precursors, that are secreted chiefly by the ovaries, placenta, adipose tissue, and testes, and that stimulate the development of female secondary sex characteristics and promote the growth and maintenance of the female reproductive system also : any of various synthetic or semisynthetic steroids (such as ethinyl estradiol) that mimic the physiological effect of natural estrogens
Examples of estrogen in a Sentence
Recent Examples on the Web
Fat cells also play a role in your immune system, in regulating the level of several hormones in the body (including estrogen), and energy metabolism. — Sarah Jacoby, SELF, "The Science on Weight and Health," 26 June 2018 When your body builds up enough estrogen and increases the amount of luteinizing hormone in your body, an egg is released and is carried into the fallopian tubes. — Tehrene Firman, Woman's Day, "When Do Women Ovulate? Here's Everything You Need to Know," 13 June 2018 The Week After Your Period After a bumpy ride (literally!), your estrogen and progesterone hormone levels have gone back to normal — and so will your skin. — Jillian Ruffo, Seventeen, "Why Your Period Makes You Break Out and How to Deal," 17 Feb. 2017 When my estrogen dropped, my life changed in an instant. — Diane Mehta, Longreads, "Letter to a Dog Walking Service," 10 Feb. 2018 When the women in the study lost weight — about 12 pounds on average — changes in biomarkers for breast cancer, like estrogen, leptin and inflammatory proteins, indicated a reduction in breast cancer risk. — New York Times, "The Dangers of Belly Fat," 11 June 2018 Treatment options include estrogen-blocking drugs along with doses of chemotherapy to lower the risk of recurrence. — Sandee Lamotte, CNN, "Many women with common breast cancer can safely skip chemo, study says," 3 June 2018 For women, this decade often means declines in estrogen, one of the hormones responsible for metabolizing calories consumed and retaining bone mass and density. — Philly.com, "A decade-by-decade guide for staying fit for life," 16 May 2018 Schenone, 18, went on estrogen in August before starting as a freshman at Columbia College. — Angie Leventis Lourgos, chicagotribune.com, "Before they transition, some transgender youth preserve fertility by banking sperm or eggs," 3 Apr. 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'estrogen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for estrogen
estrogen
noun
English Language Learners Definition of estrogen
medical : a substance (called a hormone) that occurs naturally in women
See the full definition for estrogen in the English Language Learners Dictionary
estrogen
noun
\
\
Medical Definition of estrogen
: any of various natural steroids (as estradiol) that are formed from androgen precursors, that are secreted chiefly by the ovaries, placenta, adipose tissue, and testes, and that stimulate the development of female secondary sex characteristics and promote the growth and maintenance of the female reproductive system also : any of various synthetic or semisynthetic steroids (as ethinyl estradiol) that mimic the physiological effect of natural estrogens
Other words from estrogen
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adjective
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