Radiator

n.	1.	That which radiates or emits rays, whether of light or heat; especially, that part of a heating apparatus from which the heat is radiated or diffused; as, a steam radiator.
	2.	Any of various devices for cooling an internal substance by radiation, as a system of rings on a gun barrel for cooling it, or a nest of tubes with large radiating surface for cooling circulating water, as in an automobile.
	3.	(Wireless Teleg.) An oscillator.

Noun	1.	radiator - any object that radiates energy
	2.	radiator - heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings
	3.	radiator - a mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is transferred from the fluid through the honeycomb to the airstream that is created either by the motion of the vehicle or by a fan

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