radiant

radiant is an Adverb

Definition:

[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] Giving off rays; -- said of a bearing; as, the sun radiant; a crown radiant.

[5] 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.