What does coolant mean?

n. A substance used to lower the temperature of something, like an engine or a nuclear reactor.

coolant

🇺🇸 /ˈkuːlənt/ 🇬🇧 /ˈkuːlənt/

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noun

A substance used to lower the temperature of something, like an engine or a nuclear reactor.

The car's engine overheated because the coolant level was too low.

A substance used to lower the temperature of something, like an engine or a nuclear reactor.

Plural coolants