Definition of maturationist in English:

maturationist

noun

North American
Psychology Linguistics
  • A person who believes that genetic factors are more important than environmental ones in determining a child's development, especially with regard to the acquisition of language.

adjective

North American
Psychology Linguistics
  • Of, relating to, or characteristic of maturationists or their beliefs.

Origin

1960s; earliest use found in Canadian Medical Association Journal. From maturation + -ist.

Pronunciation

maturationist

/ˌmatjʊˈreɪʃ(ə)nɪst//ˌmatʃʊˈreɪʃənɪst//ˌmatʃʊˈreɪʃ(ə)nɪst/