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Adjacent Words

radial-ply tire
Radiale
Radialia
radially
radially symmetrical
radian
Radiance
radiancy
Radiant
radiant energy
Radiant engine
radiant exposure
radiant flux
radiant heating
Radiant point
Radiantly
Radiary
Radiata
Radiate
Radiated
radiately
Radiatiform
Radiating
radiatio optica
Radiation
radiation diagram

radiant heat definitions

Merriam Webster's

noun Date: 1621 heat transmitted by radiation as contrasted with that transmitted by conduction or convection

Webster's 1913 Dictionary

Radiant Ra"di*ant, a. [L. radians, -antis, p. pr. of radiare to emit rays or beams, fr. radius ray: cf. F. radiant. See Radius, Ray a divergent line.] 1. Emitting or proceeding as from a center; [U.S.] rays; radiating; radiate. 2. Especially, emitting or darting rays of light or heat; issuing in beams or rays; beaming with brightness; emitting a vivid light or splendor; as, the radiant sun. Mark what radiant state she spreads. --Milton. 3. Beaming with vivacity and happiness; as, a radiant face. 4. (Her.) Giving off rays; -- said of a bearing; as, the sun radiant; a crown radiant. 5. (Bot.) Having a raylike appearance, as the large marginal flowers of certain umbelliferous plants; -- said also of the cluster which has such marginal flowers. Radiant energy (Physics), energy given out or transmitted by radiation, as in the case of light and radiant heat. Radiant heat, proceeding in right lines, or directly from the heated body, after the manner of light, in distinction from heat conducted or carried by intervening media. Radiant point. (Astron.) See Radiant, n., 3.




 


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