RADIANT

beaming, beamy, effulgent, radiant, refulgent

(adjective) radiating or as if radiating light; “the beaming sun”; “the effulgent daffodils”; “a radiant sunrise”; “a refulgent sunset”

Source: WordNet® 3.1

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Etymology

Adjective

radiant (comparative more radiant, superlative most radiant)

Radiating light and/or heat.

Emitted as radiation.

Beaming with vivacity and happiness.

Emitting or proceeding as if from a center.

(heraldry) Giving off rays; said of a bearing.

(botany) Having a ray-like appearance, like the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers.

Noun

radiant (plural radiants)

A point source from which radiation is emitted.

(astronomy) The apparent origin, in the night sky, of a meteor shower.

(geometry) A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.

Anagrams

• anti-rad, antirad, intrada, itardan

Source: Wiktionary

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Ra"di*ant, a. Etym: [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.)

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

5. (Bot.)

Definition: 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.

Ra"di*ant, n.

1. (Opt.)

Definition: The luminous point or object from which light emanates; also, a body radiating light brightly.

2. (Geom.)

Definition: A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.

3. (Astron.)

Definition: The point in the heavens at which the apparent paths of shooting stars meet, when traced backward, or whence they appear to radiate.

Source: Webster’s Unabridged Dictionary 1913 Edition

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