Meaning of COOLANT in English

COOLANT

/ ˈkuːlənt; NAmE / noun

[ C , U ] a liquid that is used for cooling an engine, a nuclear reactor , etc.

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WORD ORIGIN

1930s: from cool , on the pattern of lubricant .

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