superfecundation

American  

[soo-per-fee-kuhn-dey-shuhn, -fek-uhn-] / ˌsu pərˌfi kənˈdeɪ ʃən, -ˌfɛk ən- /

noun

1. the fertilization of two or more ova discharged at the same ovulation by successive acts of sexual intercourse.

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superfecundation British  

/ ˌsuːpəˌfiːkənˈdeɪʃən /

noun

1. physiol the fertilization of two or more ova, produced during the same menstrual cycle, by sperm ejaculated during two or more acts of sexual intercourse

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Etymology

Origin of superfecundation

1850–55; super- + fecundation ( def. )

Example Sentences

He explains that heteropaternal superfecundation occurs when a woman gives birth to twins with different biological fathers.

From The Guardian • Dec. 11, 2018

Kasraie has found two studies of the incidence of heteropaternal superfecundation, both from the early 1990s.

From The Guardian • Dec. 11, 2018

Although rare in humans, heteropaternal superfecundation is common in dogs, cats and cows, Carroll explains.

From The Guardian • Dec. 11, 2018

A 1992 study found that superfecundation twins were at the root of more than 2% of paternity suits in the United States involving twins.

From Time • May 8, 2015

Jennifer Wu, an obstetrician-gynecologist at Lenox Hill Hospital in Manhattan, called it a case of superfecundation, a rare phenomenon classically illustrated in medical textbooks with a black baby and a white baby who are twins.

From New York Times • May 7, 2015