English noun: coolant | |||
1. | coolant (substance) 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 | ||
Samples | 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. | ||
Broader (hypernym) | agent, fluid | ||