1. (Material Noun-Neuter) A heating device consisting of a series of connected pipes, typically inside an upright metal structure, through which steam or hot water is circulated so as to radiate heat into the surrounding space. A cooling device, as in automotive engines, through which water or other fluids circulate as a coolant.Physics: A body that emits radiation. A transmitting antenna.

English: radiator,
Assamese: বিকিৰক,
Bodo: रेडिएटर्