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superfetation Line breaks: super|feta¦tion
Pronunciation: /ˌsuːpəfiːˈteɪʃ(ə)n/

Definition of superfetation in English:


[mass noun] Medicine & Zoology
1The occurrence of a second conception during pregnancy, giving rise to embryos of different ages in the uterus: this is an example of superfetation and of ovulation during pregnancy
More example sentences
  • The researchers believe the combination of embryonic diapause and superfetation may benefit females, regardless of their social system, by enabling cryptic polyandry - mating with more than one male.
  • When does are bred on multiple heat cycles, it may appear that superfetation has occurred due to fetal sizes and maturity differences.
  • The topmost photo at right is of an ovary of the species Poeciliopsis presidionis, which has superfetation and extensive maternal provisioning.
1.1The accretion of one thing on another: the superfetation of ideas


Early 17th century: from French superfétation or modern Latin superfetatio(n-), from Latin superfetare, from super- 'above' + fetus 'fetus'.

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