"radiator" in the noun sense
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
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License