'Superfecundation' definitions:
Definition of 'superfecundation'
From: WordNet
noun
Fertilization of two or more ova released during the same menstrual cycle by sperm from separate acts of coitus (especially by different males)
Definition of 'Superfecundation'
From: GCIDE
- Superfecundation \Su`per*fec`un*da"tion\, n. (Physiol.) Fertilization of two ova, at the same menstruation, by two different acts of coition. [1913 Webster]