radiant

ra·di·ant

R0011300 (rā′dē-ənt)adj.1. Emitting heat or light: a radiant star.2. Consisting of or emitted as radiation: radiant heat.3. Filled with light shining especially as rays; brightly shining: a radiant morning. See Synonyms at bright.4. a. Showing or expressing vitality or joy: radiant eyes; a radiant smile.b. Splendid; glorious: radiant beauty; a radiant future.n.1. An object or point from which light or heat rays are emitted.2. Astronomy The apparent celestial origin of a meteoric shower.

[Middle English, from Latin radiāns, radiant-, present participle of radiāre, to radiate; see radiate.]

ra′di·ant·ly adv.

radiant

(ˈreɪdɪənt) adj1. sending out rays of light; bright; shining2. characterized by health, intense joy, happiness, etc: a radiant countenance. 3. (General Physics) emitted or propagated by or as radiation; radiated: radiant heat. 4. sending out heat by radiation: a radiant heater. 5. (General Physics) physics (of a physical quantity in photometry) evaluated by absolute energy measurements: radiant flux; radiant efficiency. Compare luminousn6. (General Physics) a point or object that emits radiation, esp the part of a heater that gives out heat7. (Astronomy) astronomy the point in space from which a meteor shower appears to emanate[C15: from Latin radiāre to shine, from radius ray of light, radius] ˈradiantly adv

ra•di•ant

(ˈreɪ di ənt)

adj. 1. emitting rays of light; shining; bright. 2. bright with joy, hope, etc. 3. Physics. emitted or propagated by radiation. n. 4. a point or object from which rays proceed. [1400–50; < Latin radiant-, s. of radiāns, present participle of radiāre to radiate light, shine, v. derivative of radi(us) beam, ray] ra′di•ant•ly, adv.

ra·di·ant

(rā′dē-ənt)1. Sending forth light, heat, or other radiation: a radiant star.2. Consisting of or transmitted as radiation.

Thesaurus

Adj.

radiant - radiating or as if radiating light; "the beaming sun"; "the effulgent daffodils"; "a radiant sunrise"; "a refulgent sunset"effulgent, refulgent, beamy, beamingbright - emitting or reflecting light readily or in large amounts; "the sun was bright and hot"; "a bright sunlit room"

radiant

adjective1. happy, glowing, ecstatic, joyful, sent, gay, delighted, beaming, joyous, blissful, rapturous, rapt, on cloud nine (informal), beatific, blissed out, floating on air On her wedding day the bride looked truly radiant.
happy low, sad, miserable, gloomy, sombre, sorrowful, disconsolate, joyless, down in the dumps (informal)2. bright, brilliant, shining, glorious, beaming, glowing, sparkling, sunny, glittering, gleaming, luminous, resplendent, incandescent, lustrous, effulgent Out on the bay the morning is radiant.
bright black, dark, dull, gloomy, sombre

radiant

adjectiveGiving off or reflecting light readily or in large amounts:beamy, bright, brilliant, effulgent, incandescent, irradiant, lambent, lucent, luminous, lustrous, refulgent, shiny.

Translations

光芒四射的容光焕发的欢欣的辐射的

radiant

(ˈreidiənt) adjective1. showing great joy. a radiant smile.欢欣的, ，容光焕发的 2. sending out rays of heat, light etc or carried, sent etc in the form of, or by means of, rays of heat, light etc. 辐射的，光芒四射的 ˈradiantly adverb欢欣地, ，光芒四射地辉煌地 ˈradiance nounthe radiance of her smile.喜悦, ，闪烁

radiant

radiant:

see meteor showermeteor shower,
increase in the number of meteors observed in a particular part of the sky. The trails of the meteors of a meteor shower all appear to be traceable back to a single point in the sky, known as the radiant point, or radiant.
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radiant

(ray -dee-ănt) The point on the celestial sphere, usually given in the coordinates right ascension and declination, from which a meteor appears to originate. Shower meteors all seem to radiate from this point and the trains of a series of shower meteors, extrapolated backwards, intercept at the radiant. Its position is found by calculating the intercept with the celestial sphere of the vector sum of the meteor's velocity vector and the Earth's velocity vector on collision. The radiant position changes slightly with time as the Earth moves through the meteoroid stream. Meteor showers are usually named after the constellation that contains the radiant.

Radiant

the point on the celestial sphere that appears to be the source of the meteors observed when the earth encounters a swarm of meteoroids moving around the sun in a common orbit. Meteoroids belonging to the same swarm have almost exactly parallel trajectories in space. Consequently, if the paths of the meteors in the corresponding meteor shower are extended backward to the celestial sphere, they intersect in a small area of the sky because of the effects of perspective. The center of this area is the radiant.

radiant

[′rād·ē·ənt] (astronomy) A point on the celestial sphere through which pass the backward extensions of the trail of a meteor as observed at various locations, or the backward extensions of trails of a number of meteors traveling parallel to each other. A point on the celestial sphere toward which the stars in a moving cluster appear to travel. (physics) Pertaining to motion of particles or radiation along radii from a common point or a small region. A point, region, substance, or entity from which particles or radiations are emitted.

radiant

1. emitted or propagated by or as radiation; radiated 2. Physics (of a physical quantity in photometry) evaluated by absolute energy measurements 3. a point or object that emits radiation, esp the part of a heater that gives out heat 4. Astronomy the point in space from which a meteor shower appears to emanate

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Synonyms for radiant

adj happy

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Antonyms

adj bright

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Synonyms for radiant

adj giving off or reflecting light readily or in large amounts

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Synonyms for radiant

adj radiating or as if radiating light

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Related Words