estriol

noun
es·​tri·​ol | \ ˈe-ˌstrī-ˌȯl How to pronounce estriol (audio) , e-ˈstrī-, -ˌōl \

Definition of estriol

: 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

First Known Use of estriol

1933, in the meaning defined above

History and Etymology for estriol

estrane + tri- + -ol entry 1

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The first known use of estriol was in 1933

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Cite this Entry

“Estriol.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/estriols. Accessed 13 December 2019.

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More Definitions for estriol

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 \ ˈē-​ˌstrī-​ˌȯl How to pronounce oestriol (audio) , ē-​ˈstrī-​ How to pronounce oestriol (audio) , -​ˌōl \

Medical Definition of estriol

: 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

More from Merriam-Webster on estriol

Britannica.com: Encyclopedia article about estriol

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