mifepristone

noun

mi·​fep·​ris·​tone ˌmi-fə-ˈpri-ˌstōn How to pronounce mifepristone (audio)
mi-ˈfe-pri-ˌstōn
: a drug C29H35NO2 taken orally to induce abortion especially early in pregnancy by blocking the body's use of progesterone

called also RU-486

Examples of mifepristone in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In the early stages of pregnancy, at or before 10 weeks, a pregnant person can take a pill called misoprostol, with or without mifepristone, to simulate an early miscarriage. Tim Ryan, Newsweek, 17 Dec. 2024 In another case out of Texas, a group of doctors sued the Food and Drug Administration over the use of mifepristone for abortions. Anita Chabria, Los Angeles Times, 17 Dec. 2024 The document says the Food and Drug Administration should reverse its approval of mifepristone, the drug used in almost two-thirds of abortions in the U.S. Adrianna Rodriguez, USA TODAY, 13 Nov. 2024 If mifepristone were to remain approved, Project 2025 recommends new rules, such as cutting its use from 10 weeks into pregnancy to seven. Samantha Putterman, Austin American-Statesman, 21 Aug. 2024 See all Example Sentences for mifepristone 

Word History

Etymology

perhaps from amino + fe- (alteration of phen-) + pri- (alteration of prop-) + estradiol + -one

First Known Use

1985, in the meaning defined above

Time Traveler
The first known use of mifepristone was in 1985

Dictionary Entries Near mifepristone

Cite this Entry

“Mifepristone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mifepristone. Accessed 22 Dec. 2024.

Medical Definition

mifepristone

noun
mi·​fep·​ris·​tone ˌmi-fə-ˈpris-ˌtōn How to pronounce mifepristone (audio) mi-ˈfep-ri-ˌstōn How to pronounce mifepristone (audio)
: a drug C29H35NO2 taken orally to induce abortion especially early in pregnancy by blocking the body's use of progesterone

called also RU-486

More from Merriam-Webster on mifepristone

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