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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
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Recent Examples of estrogen from the Web
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Alcohol can also damage our DNA, help carry cancer-causing substances into cells, or be linked with higher levels of estrogen, which could help cancer cells grow.
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Women naturally have high levels of estrogen, which can accelerate the formation of gallstones.
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The study is the first to focus specifically on the safety of pregnancy for women whose cancers are fueled by estrogen.
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Those hoping a shot of estrogen would generate a new kind of comic-book movie — and revive DC’s faltering movie universe — might need to lower their expectations.
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In other words, these are the cancer cells that bind estrogen, which helps them grow.
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In response, the cells secreted levels of estrogen and progesterone found in a typical menstrual cycle—including during ovulation—replicating the signaling that occurs among different female reproductive organs.
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After menopause, when estrogen levels drop, the rate of heart disease in women goes up dramatically.
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According to the Environmental Protection Agency, animal studies have found that the compound can be toxic to reproductive, developmental, and systemic body functions, and also mimics the hormone estrogen.
These 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.
Origin and Etymology of estrogen
New Latin estrus + International Scientific Vocabulary -o- + -gen
ESTROGEN Defined for English Language Learners
estrogen
playDefinition of estrogen for English Language Learners
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medical : a substance (called a hormone) that occurs naturally in women
Medical Dictionary
estrogen
playMedical 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
estrogen–like
orestrogenlike
\-ˌlīk\ play adjective an estrogen-like compound estrogen-like effectsLearn More about estrogen
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Spanish Central: Translation of estrogen Nglish: Translation of estrogen for Spanish speakers Britannica English: Translation of estrogen for Arabic speakers Britannica.com: Encyclopedia article about estrogen
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