Noun: coolant koo-lunt
- 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
"lathe operators use an emulsion of oil and water as a coolant for the cutting tool"; "he added more coolant to the car's radiator"; "the atomic reactor used a gas coolant"
Derived forms: coolants
Encyclopedia: Coolant