estradiol

noun
es·tra·di·ol | \ˌe-strə-ˈdī-ˌȯl, -ˌōl\

Definition of estradiol 

: a natural estrogenic hormone that is a phenolic alcohol C18H24O2 secreted chiefly by the ovaries, that is the most potent of the naturally occurring estrogens, and that is administered in its natural or semisynthetic esterified form especially to treat menopausal symptoms

Examples of estradiol in a Sentence

Recent Examples on the Web

The prices for estradiol products for vaginal use have risen significantly over the past five years. Katie Thomas, New York Times, "Prices Keep Rising for Drugs Treating Painful Sex in Women," 3 June 2018 The study’s authors prescribed progesterone and estradiol, hormones that can influence lactation and that normally occur in pregnant women. Ceylan Yeginsu, New York Times, "Transgender Woman Breast-Feeds Baby After Hospital Induces Lactation," 15 Feb. 2018 Tyler’s experiments looked at one type of synthetic estrogen: ethinyl estradiol, or EE2, which is found in oral contraceptives like TriNessa and Seasonique. Becky Little, Smithsonian, "How One Bad Science Headline Can Echo Across the Internet," 1 Aug. 2017 One environmental estrogen is ethinyl estradiol—a chemical found in birth control pills. National Geographic, "Why Are These Male Fish Growing Eggs?," 3 Feb. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'estradiol.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of estradiol

1934, in the meaning defined above

History and Etymology for estradiol

International Scientific Vocabulary estra- (from estrane parent compound of estradiol, from New Latin estrus + English -ane) + di- + -ol entry 1

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The first known use of estradiol was in 1934

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More Definitions for estradiol

estradiol

noun
es·tra·di·ol | \ˌes-trə-ˈdī-ˌȯl, -ˌōl \
variants: or chiefly British oestradiol \ˌē-strə-ˈdī-ˌȯl, ē-ˈstrad-ē-ˌȯl, -ˌōl \

Medical Definition of estradiol 

: a natural estrogenic hormone that is a phenolic alcohol C18H24O2 secreted chiefly by the ovaries, is the most potent of the naturally occurring estrogens, and is administered in its natural or semisynthetic esterified form especially to treat menopausal symptoms

called also dihydrotheelin

— see estrace, estraderm, estring

More from Merriam-Webster on estradiol

Britannica.com: Encyclopedia article about estradiol

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