Abortion pill and Abortion-inducing drug

Abortion pill 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.

Abortion-inducing drug and abortion pill are semantically related. In some cases you can use "Abortion-inducing drug" instead a noun phrase "Abortion pill".

Abortion-inducing drug noun - A drug (or other chemical agent) that causes abortion.

Abortion pill and abortion-inducing drug are semantically related. Sometimes you can replace phrase "Abortion pill" with "Abortion-inducing drug", this phrases are similar.