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

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

The badger, American mink, panther, buffalo and swamp wallaby are a few examples of mammals in which superfetation is well documented.

From Scientific American Apr. 27, 2011

The phenomenon of superfetation in animals has long been speculated as far back as fourth century B.C by Aristotle.

From Scientific American Apr. 27, 2011

For that which is denied in other generations is done in this of yours: for here is superfetation, childe upon childe, and that which is more strange twins at a latter conception.

From Letters to Severall Persons of Honour by Donne, John

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training