mifepristone
Pronunciation: /ˌmɪfɛˈprɪstəʊn/
Definition of mifepristone
noun
- a synthetic steroid that inhibits the action of progesterone, given orally in early pregnancy to induce abortion. Also called RU486 ( trademark).
Origin:
1980s: probably from Dutch mifepriston, from mife- (representing aminophenol) + -pr- (representing propyl) + -ist- (representing oestradiol) + -one