radiator

3 definitions • 2 examples

a device, usually a container filled with water, that sends out heat, often as part of a heating or cooling system:

When we installed the central heating, we put a radiator in every room.

My car engine overheated because the water had leaked out of the radiator.

a device for heating rooms in buildings, consisting of a series of pipes through which steam or hot water passes

In a motor vehicle, a radiator is a device for cooling the engine.