Mifepristone Definition

mĭ-fĕprĭ-stōn
noun
RU 486.
American Heritage
A steroidal drug, C29H35NO2, used orally primarily to terminate pregnancy at the earliest stage by blocking the reception of progesterone.
Webster's New World
Synonyms:

Origin of Mifepristone

  • (a)mi(no) alteration of phe(nyl) pr(opyl) alteration of est(radiol) –one

    From American Heritage Dictionary of the English Language, 5th Edition

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