abortion pill

Từ điển WordNet v3.1 - WordNet Dictionary

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
• Syn:
mifepristone, RU 486
• Usage Domain:
trademark (for: RU 486)
• Hypernyms:
abortifacient, aborticide, abortion-inducing drug