- Superfecundation is when multiple eggs from the same menstruation period are fertilized by different sperm.
An example of superfecundation is when two babies are conceived from two different sperm and two different eggs in the womb during the same cycle.
superfecundation definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
the fertilization of two ova at separate times during the same ovulation period
Origin: super- plush fecundation
superfecundation definition by American Heritage Dictionary
Fertilization of more than one ovum within a single menstrual cycle by separate acts of coitus, especially by different males.