(n.) The formation of a fetus at the result of an impregnation occurring after another impregnation but before the birth of the offspring produced by it. This is possible only when there is a double uterus or where menstruation persists up to the time of the second impregnation.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). superfetation. Retrieved September 24, 2026, from http://smartdefine.org/superfetation/definitions/2068591 |
| Chicago | Webster's. 2011. "superfetation" http://smartdefine.org/superfetation/definitions/2068591 (accessed September 24, 2026). |
| Harvard | Webster's 2011, superfetation, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/superfetation/definitions/2068591>. |
| MLA | Webster's. "superfetation" 28 May 2011. Web. 24 September 2026. <http://smartdefine.org/superfetation/definitions/2068591> |