estriol

noun

es·​tri·​ol ˈe-ˌstrī-ˌȯl How to pronounce estriol (audio)
e-ˈstrī-,
-ˌōl How to pronounce estriol (audio)
: a relatively weak natural estrogenic hormone that is a glycol C18H24O3 found in the body chiefly as a metabolite of estradiol, is the main estrogen secreted by the placenta during pregnancy, and is the estrogen typically found in the urine of pregnant women

Examples of estriol in a Sentence

Recent Examples on the Web Estrogen is a group of hormones (there are three types: estradiol, estriol, and estrone) that helps regulate the menstrual cycle and has an impact on various parts of the body, including the urinary tract, bones, breasts, skin, heart and blood vessels, pelvic muscles, and the brain. Fiorella Valdesolo, Vogue, 14 June 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'estriol.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

estrane + tri- + -ol entry 1

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of estriol was in 1933

Dictionary Entries Near estriol

Cite this Entry

“Estriol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/estriol. Accessed 28 Mar. 2024.

Medical Definition

estriol

noun
es·​tri·​ol ˈes-ˌtrī-ˌȯl How to pronounce estriol (audio) e-ˈstrī- How to pronounce estriol (audio)
-ˌōl
variants or chiefly British oestriol
: a relatively weak natural estrogenic hormone that is a glycol C18H24O3 found in the body chiefly as a metabolite of estradiol, is the main estrogen secreted by the placenta during pregnancy, and is the estrogen typically found in the urine of pregnant women

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