noun
- An abortion-inducing drug (trade name RU_486) developed in France; when taken during the first five weeks of pregnancy it blocks the action of progesterone so that the uterus sloughs off the embryo.
- synonyms: abortion pill, RU 486
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). mifepristone. Retrieved September 21, 2026, from http://smartdefine.org/mifepristone/definitions/1295032 |
| Chicago | WordNet. 2010. "mifepristone" http://smartdefine.org/mifepristone/definitions/1295032 (accessed September 21, 2026). |
| Harvard | WordNet 2010, mifepristone, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/mifepristone/definitions/1295032>. |
| MLA | WordNet. "mifepristone" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/mifepristone/definitions/1295032> |