estriol

American

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

noun

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

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023