fetalization

noun fe·tal·iza·tion
variants: or less commonly foetalization \-ˌīˈz-\

Definition of fetalization

plural -s
: a retention in the postnatal life of higher forms of conditions occurring during development of related lower forms
  • the human skull shows fetalization in comparison to the gorilla's since it resembles the simple infant gorilla skull rather than the massive specialized adult skull

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