12 letters · 19 points in Scrabble
noun an abortion-inducing drug (trade name RU_486) 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
originEtymology tree English (a)mi(no)phe(nyl) English pr(opargyl) English ist- German Ketonbor. English ketone English -one English mifepristone From (a)mi(no)phe(nyl) + pr(opargyl) + ist- (“alteration of (o)est(radiol)”) + -one.
Etymology from Wiktionary, CC BY-SA 3.0