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 This week, the nation dodged a bullet with the Supreme Court’s 9-0 decision tossing a lawsuit that had sought to end the decades-old FDA approval of the drug mifepristone, which is used in medication abortions. New York Daily News Editorial Board, New York Daily News, 15 June 2024 But the battle over abortions remains fraught, and advocates acknowledge the mifepristone case is but one small victory. Anna Kitanaka, Bloomberg.com, 13 June 2024 The case was an attempt to ban mifepristone, a drug that is used in over half of all US abortions. Ian Millhiser, Vox, 13 June 2024 Despite today's ruling, the challenge to mifepristone access may not yet be over. Staff Author, Verywell Health, 13 June 2024 See all Example Sentences for mifepristone 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mifepristone.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 7 Jul. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!