Bible Dictionaries
Superfecundation

Webster's Dictionary

(n.) Fertilization of two ova, at the same menstruation, by two different acts of coition.

Bibliography Information
Webster, Noah. Entry for 'Superfecundation'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/superfecundation.html. 1828.