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Showing results for superfetation. Search instead for superrefraction.

superfetation

American  
[soo-per-fee-tey-shuhn] / ˌsu pər fiˈteɪ ʃən /

noun

  1. the fertilization of an ovum in a female mammal already pregnant.


superfetation British  
/ ˌsuːpəfiːˈteɪʃən /

noun

  1. physiol the presence in the uterus of two fetuses developing from ova fertilized at different times

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of superfetation

1595–1605; < Latin superfētāt ( us ) (past participle of superfētāre to conceive again while still pregnant, equivalent to super- super- + fētā ( re ) to breed ( see fetus) + -tus past participle suffix) + -ion

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A rare condition known as superfetation makes it possible to conceive for a second time when pregnant.

From BBC Nov. 15, 2016

Pregnancy normally stops the monthly cycle of ovulation but superfetation allows it to continue.

From BBC Nov. 15, 2016

He deduced that the imperfect offsprings were younger ones who had spent less time in their mother’s womb—a direct consequence of superfetation.

From Scientific American Apr. 27, 2011

For this reason, it is probable that many more mammals may be accustomed to superfetation.

From Scientific American Apr. 27, 2011

In this strange case, possibly an example of superfetation, the patient made a good recovery and the first child lived.

From Anomalies and Curiosities of Medicine by Walter L. (Walter Lytle) Pyle

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