a steroidal drug, CHNO, used orally primarily to terminate pregnancy at the earliest stage by blocking the reception of progesterone
Origin of mifepristoneultimately from (a)mi(no)phe(nol) + pr(opyl) + est(radiol) + -one
A synthetic steroid, C29H35NO2, that blocks the action of progesterone and is used in combination with misoprostol to induce abortion in early pregnancy. Also called RU 486 .
Origin of mifepristone(a)mi(no) alteration of phe(nyl) pr(opyl) alteration of est(radiol) -one