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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

Derived forms: radiators

See also: radiate

Type of: heater, mechanism, natural object, warmer

Part of: cooling system, engine cooling system, heat, heating, heating plant, heating system

Encyclopedia: Radiator