COOLANT

coolant

(noun) 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”

Source: WordNet® 3.1

Etymology

Noun

coolant (plural coolants)

A medium, usually fluid, used to draw heat from an object.

Anagrams

• octanol

Source: Wiktionary