coolant
noun/ˈkuːlənt/
/ˈkuːlənt/
[countable, uncountable]- a liquid that is used for cooling an engine, a nuclear reactor, etc.Oxford Collocations DictionaryCoolant is used after these nouns:
- reactor
Word Origin1930s: from cool, on the pattern of lubricant.Want to learn more?
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coolant