Rā'di-ā'tor, n.
n. [Sp. radiador.] That which radiates or emits rays, whether of light or heat; especially, that part of a heating apparatus the use of which is to radiate heat.
n. [Sp. radiador.] That which radiates or emits rays, whether of light or heat; especially, that part of a heating apparatus the use of which is to radiate heat.