Aparell format per un conjunt de tubs pels quals circula un líquid calent que serveix per escalfar un lloc: la calefacció d'aquesta casa consta de diversos radiadors connectats per tubs.
Device formed by a set of tubes through which a hot liquid circulates that serves to heat a place: the heating of this house consists of several radiators connected by tubes.
Aparell format per un conjunt de tubs pels quals circula l'aigua que serveix per refredar el motor d'un automòbil: el radiador d'un cotxe és necessari perquè no s'escalfi massa el motor.
Apparatus formed by a set of tubes through which water circulates that serves to cool the engine of a car: the radiator of a car is necessary so that the engine does not heat up too much.