[mes-truh-nawl, -nol]

noun Pharmacology.

an estrogen, C21H26O2, used in oral contraceptives in combination with a progestin.

Origin of mestranol

1960–65; contraction and rearrangement of methoxy- and ethynylestradiol, components of the chemical name Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for mestranol



a synthetic oestrogen used in combination with progestogens as an oral contraceptive. Formula: C 21 H 26 O 2

Word Origin for mestranol

C20: from m (ethyl) + (o) estr (ogen) + (pregn) an (e) (C 21 H 36) + -ol
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

mestranol in Medicine


[mĕstrə-nôl′, -nōl′]


A synthetic estrogen used in combination with a progestin in oral contraceptive preparations.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.