coolant
(noun)
noun
1. a fluid agent (gas or liquid) that produces cooling; especially one used to cool a system by transferring heat away from one part to another
- he added more coolant to the car's radiator
- the atomic reactor used a gas coolant
- lathe operators use an emulsion of oil and water as a coolant for the cutting tool
Definition categories: substance, agent, fluid
Sentences with coolant as a noun:
- Coolant is used in car engines and industrial processes, where excess heat could cause machine damage.