radiator

英['reɪdɪeɪtə] 美['redɪ'etɚ]

1. any object that radiates energy

2. heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings

3. 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