- an antigestational drug, C29H35NO2, that prevents a fertilized egg from attaching to the uterine wall by blocking the action of progesterone.
Origin of mifepristone
1985–90; probably alteration of (a)mi(no)phe(nol) + pr(opyl) + est(radiol) + -one
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- an antiprogestogenic steroid, used in the medical termination of pregnancy. Formula: C 29 H 35 NO 2
C20: from a mi no phe nol + pr opyne + oest radiol + -one
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.