അർത്ഥം : Any object that radiates energy.

അർത്ഥം : Heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings.

അർത്ഥം : 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.