Meaning of REGRESSION in English

REGRESSION

/ rɪˈgreʃn; NAmE / noun

[ U , C ] regression (to sth) the process of going back to an earlier or less advanced form or state

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WORD ORIGIN

late Middle English : from Latin regressio(n-) , from regredi go back, return, from re- back + gradi walk.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.