D defs.my
Entry 1 sense Webster, 1913

Superfecundation

· Su·per·fec·un·da·tion · IPA /ˌsupəɹˌfikənˈdeɪʃən/
01 n. Fertilization of two ova, at the same menstruation, by two different acts of coition.
  1. 1.
    Fertilization of two ova, at the same menstruation, by two different acts of coition.(Physiol.)