British Dictionary definitions for psycholinguistics
psycholinguistics
/ˌsaɪkəʊlɪŋˈɡwɪstɪks/
noun
1.
(functioning as sing) the psychology of language, including language acquisition by children, the mental processes underlying adult comprehension and production of speech, language disorders, etc
psycholinguistics psy·cho·lin·guis·tics (sī'kō-lĭng-gwĭs'tĭks) n. The study of the influence of psychological factors on the development, use, and interpretation of language.