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- DictionaryRa·di·ant/ˈrādēənt/
adjective
- 1. sending out light; shining or glowing brightly: "a bird with radiant green and red plumage"
- 2. (of heat) transmitted by radiation, rather than conduction or convection: "plants convert the radiant energy of the sun into chemical energy"
noun
- 1. a point or object from which light or heat radiates, especially a heating element in an electric or gas heater: "I sat down by my hissing gas fire—one of the radiants was missing"