[es-tree-awl, -ol, -trahy-]
- Biochemistry. an estrogenic hormone, C18H21(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.
Origin of estriol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the usual US spelling of oestriol
estriol(ĕs′trī-ôl′, -ōl′, ĕ-strī′-)
- A metabolite of estradiol and usually the predominant estrogenic metabolite found in the urine of pregnant women.theelol