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English definition of “coolant”

coolant

noun [C or U]     /ˈkuː.lənt/ specialized
a specially prepared liquid that is used to stop a machine from getting too hot while it is operatingTypes of chemicalSpecific chemicals, chemical compounds and gasesSubstances and structures in the body
(Definition of coolant noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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