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SUPERFOETATION, med. jur. The conception of a second embryo, during the gestation of the first, or the conception of a child by a woman already pregnant with another, during the time of such pregnancy.
     2. This doctrine, though doubted, seems to be established by numerous cases. Beck's Med. Jur. 193; Cassan on Superfoetation; New York Medical Repository; 1 Briand, Med. Leg. prem. partie, c. 3, art. 4; 1 Fodere, Med. Leg. Sec. 299; Buffon, Hist. Nat. de l'Homme, Puberte.

References in periodicals archive ?
However, to confirm a case of superfetation, doctors need to conduct chromosomal and metabolic tests on the babies after they are born.
Seemingly, superfetation is so rare that Boyle has heard of only 10 reported cases.
For Ame was conceived three weeks after Lia due to a rare event called superfetation.
Doctors suspect she has a rare condition called superfetation, which means conceiving when already pregnant.