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estriol

American  
[es-tree-awl, -ol, -trahy-] / ˈɛs triˌɔl, -ˌɒl, -traɪ- /

noun

  1. Biochemistry. an estrogenic hormone, C 18 H 21 (OH) 3 , occurring in urine during pregnancy.

  2. Pharmacology. a commercial form of this compound, obtained from human placentas or the urine of pregnant women, used in conditions involving estrogen deficiency.


estriol British  
/ ˈiːstrɪ-, ˈɛstrɪˌɒl /

noun

  1. the usual US spelling of oestriol

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of estriol

First recorded in 1930–35; es(trin) + tri- + -ol 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The pregnancy hormones are estradiol, estriol and progesterone, which give many benefits.

From The Guardian • Nov. 9, 2016

The primary hormones produced by the ovaries are estrogens, which include estradiol, estriol, and estrone.

From Textbooks • Jun. 19, 2013

These oils are even more effective when combined with small amounts of pharmacy-compounded estriol and testosterone, she said.

From New York Times • Aug. 6, 2012

They noted if products like hair oil, hair lotion, leave-in conditioners, and relaxers/perms had label ingredients such as hormones, placenta, estrogen, estradiol, estriol, estrone, methylparaben, butyl-paraben, and proplyparaben.

From Scientific American • Mar. 2, 2012

By measuring the levels of estriol, alpha-fetoprotein, and several other substances in a pregnant woman, the test assigns a certain probability to each defect.

From Slate • Oct. 19, 2011