Dictionary.com
Thesaurus.com

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  
/ ˌsuːpəˈfiːteɪt, 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

Derived 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.

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

Because for superfetation to occur, a number of things must happen—things that a woman’s reproductive cycle is intrinsically programmed to prevent.

From Scientific American • Apr. 27, 2011

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

Even Malone has been thoughtless enough to accredit this closing chapter, which contains, in fact, such a superfetation of folly as the annals of human dullness do not exceed.

From Biographical Essays by De Quincey, Thomas

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "superfetation" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com