RU-486
noun
ˈär-ˌyü-ˌfȯr-ˌā-tē-ˈsiks 
: mifepristone
Word History
Etymology
Roussel-UCLAF, the drug's French manufacturer + 486, laboratory serial number
First Known Use
1982, in the meaning defined above
Medical Definition
RU-486
noun
ˌär-(ˌ)yü-ˌfō(ə)r-ˌāt-ē-ˈsiks
: mifepristone