Definition of coolant
: a usually fluid cooling agent
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1915
First Known Use of coolant
1915
COOLANT Defined for English Language Learners
coolant
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noun
cool·ant
\ˈkü-lənt\
Definition of coolant for English Language Learners
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: a liquid that is used to cool an engine or machine
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Spanish Central: Translation of coolant Nglish: Translation of coolant for Spanish speakers Britannica English: Translation of coolant for Arabic speakers Britannica.com: Encyclopedia article about coolant
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