radiator — ODE

radiator /ˈreɪdieɪtə

▸ noun

1 a thing that radiates or emits light, heat, or sound:

a dipole is a less efficient radiator of sound than a monopole.

▪ a device for heating a room consisting of a metal tank connected by pipes through which hot water is pumped by a central heating system.

▪ a portable oil or electric heater.

2 an engine-cooling device in a motor vehicle or aircraft consisting of a bank of thin tubes in which circulating water is cooled by the surrounding air:

the water in my car radiator froze.