heat energy transmitted by electromagnetic waves in contrast to heat transmitted by conduction or convection.
heat transferred in the form of electromagnetic radiation rather than by conduction or convection; infrared radiation
noun 1. the means of heating objects or persons by radiation in which the intervening air is not heated. 2. a system for heating by radiation from a surface, especially from a surface heated by means of electric resistance, hot water, etc. noun 1. a system of heating a building by radiant heat emitted from […]
- Radiant intensity
noun 1. a measure of the amount of radiation emitted from a point expressed as the radiant flux per unit solid angle leaving this source Ie
[rey-dee-uh nt] /ˈreɪ di ənt/ adjective 1. emitting rays of light; shining; bright: the radiant sun; radiant colors. 2. bright with joy, hope, etc.: radiant smiles; a radiant future. 3. Physics. emitted or propagated by radiation. 4. Heraldry. noun 5. a point or object from which rays proceed. 6. Astronomy. the point in the heavens […]
[rey-dee-ey-tuh, -ah-tuh] /ˌreɪ diˈeɪ tə, -ˈɑ tə/ noun, Biology. 1. (in some classification systems) a major grouping that includes more or less radially symmetrical animals, as coelenterates (jellyfish, sea anemones, corals), ctenophores (comb jellies), and echinoderms (starfish, sea urchins, sea cucumbers).