Medical Dictionary
RU–486
noun
\ˌär-(ˌ)yü-ˌfō(ə)r-ˌāt-ē-ˈsiks\
\ˌär-(ˌ)yü-ˌfō(ə)r-ˌāt-ē-ˈsiks\
Medical Definition of RU-486
: a drug C29H35NO2 taken orally to induce abortion especially early in pregnancy by blocking the body's use of progesterone—called also mifepristone
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