Meaning of fetalization in English:

fetalization

Pronunciation /ˌfiːt(ə)lʌɪˈzeɪʃn/

noun

Biology
  • The retention of juvenile characteristics in a species as an evolutionary phenomenon; neoteny, paedomorphosis. Frequently attributive. Now chiefly historical.

Origin

Early 19th century (in an earlier sense). From fetal + -ization.