Meanings
nounRU-486 (uncountable)
alternative RU486 · alternative RU 486
- uncountablemedicineA drug formulation containing the active agent mifepristone
Synonyms & antonyms
proper nounSynonym of mifepristone.
Similar
Also see
Origin
- FrenchRU-486
- EnglishRU-486
Roussel+UCLAF+486, from Usines Chimiques des Laboratoires Français. From French RU-486. From the codename RU-38486, the 38,486th compound synthesized by Roussel-Uclaf; then shortened to RU-486.
More words from French
Full word history & related roots →Cite this entry
APA
RU-486. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/RU-486
MLA
“RU-486.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/RU-486. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “RU-486,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/RU-486.
Source: RU-486 on Wiktionary, CC BY-SA 4.0.