RU 486 /ˈɑrˌjuˌforˌetiˈsɪks, ˌfɔr-/
RU 486
n : an abortion-inducing drug (trade name Mifepristone)
developed in France; when taken during the first five
weeks of pregnancy it blocks the action of progesterone
so that the uterus sloughs off the embryo [syn: abortion
pill, Mifepristone]