RU 486

or RU-486

See synonyms for RU 486 on Thesaurus.com

Origin of RU 486

1
First recorded in 1980; designation given the compound by its French manufacturer, Roussel UCLAF, Paris

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

Scientific definitions for RU 486

RU 486

[ äryōō fôr′ā-tē-sĭks ]


  1. An oral drug that terminates early pregnancy by interfering with the action of progesterone, thereby preventing the attachment of a fertilized ovum to the uterine wall.

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