Meaning of RETAINING in English

RETAINING

/ rɪˈteɪnɪŋ; NAmE / adjective

[ only before noun ] ( technical ) intended to keep sth in the correct position :

a retaining wall (= one that keeps the earth or water behind it in position)

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