mifepristone

[ mif-uh-pris-tohn ]

noun

1. an antigestational drug, C 29 H 35 NO 2 , that prevents a fertilized egg from attaching to the uterine wall by blocking the action of progesterone.

mifepristone

/ mɪˈfɛprɪˌstəʊn /

noun

1. an antiprogestogenic steroid, used in the medical termination of pregnancy. Formula: C 29 H 35 NO 2

Word History and Origins

Origin of mifepristone¹

1985–90; probably alteration of (a)mi(no)phe(nol) + pr(opyl) + est(radiol) + -one

Word History and Origins

Origin of mifepristone¹

C20: from a mi no phe nol + pr opyne + oest radiol + -one