ANTIFREEZE
antifreeze
(noun) a liquid added to the water in a cooling system to lower its freezing point
Source: WordNet® 3.1
Etymology
Noun
antifreeze (countable and uncountable, plural antifreezes)
A substance, such as glycol, used to lower the freezing point of water;
(automobiles) Automotive antifreeze, a solution of ethylene glycol, used as an additive to water or replacement for water, in the radiators of motorcars.
(aviation) Deicer, a heated glycol solution used to remove ice from the aerodynamic surfaces of airplanes, and prevent icing while on the tarmac.
Usage notes
• The plural form antifreezes is used only if more than one kind of antifreeze is meant.
Source: Wiktionary