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Dictionary Language resources

superfetation

Pronunciation: /ˌsuːpəfiːˈteɪʃ(ə)n, ˌsjuː-/

Definition of superfetation

noun

[mass noun] Medicine & Zoology

the 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
the accretion of one thing on another:the superfetation of ideas