rad | radiation absorbed dose; radial; radian; radical; radius; root [Lat. radix] |
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rad/s | rad per second; radian per second |
radian | <mathematics> An arc of a circle which is equal to the radius, or the angle measured by such an arc. Origin: From Radius. Source: Websters Dictionary (01 Mar 1998) |
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radiant | 1. Emitting or proceeding as from a center; 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. <botany> Having a raylike appearance, as the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers. <physics> Radiant energy See Radiant. Origin: 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. <optics> The luminous point or object from which light emanates; also, a body radiating light brightly. 2. <geometry> A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve. 3. <astronomy> The point in the heavens at which the apparent paths of shooting stars meet, when traced backward, or whence they appear to radiate. Source: Websters Dictionary (01 Mar 1998) |
radiant energy | Energy contained in light rays or any other form of radiation. (05 Mar 2000) |
radiant heat | Heat given off from any body in the form of waves, similar to light waves but of greater wavelength. (05 Mar 2000) |
radiant intensity | The luminous flux per unit solid angle in a given direction. Synonym: candle-power, radiant intensity. (05 Mar 2000) |
radiance |
the amount of electromagnetic radiation leaving or arriving at a point on a surface the quality of being bright and sending out rays of light an attractive combination of good health and happiness; "the radiance of her countenance"
Ãâó: wordnet.princeton.edu/perl/webwn
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radiancy |
radiance: the quality of being bright and sending out rays of light
Ãâó: wordnet.princeton.edu/perl/webwn
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radiant |
beaming: radiating or as if radiating light; "the beaming sun"; "the effulgent daffodils"; "a radiant sunrise"; "a refulgent sunset"
Ãâó: wordnet.princeton.edu/perl/webwn
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radiant |
From earliest times, humankind has noticed flurries of meteors that seemed to emanate from particular points in the sky at particular times of the year. These flurries, now called meteor showers, are produced by small fragments of cosmic debris entering the earth's atmosphere at extremely high speed. Each time a periodic comet swings by the Sun, it produces large amounts of small particles which will eventually spread out along the entire orbit of the comet to form a meteoroid "stream". ...
Ãâó: en.wikipedia.org/wiki/Radiant
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radiant |
A direction in the sky from which, by perspective, meteors appear to come if they share a common orbit.
Ãâó: www.geocities.com/vodickar/Glossary.html
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radian | the unit of plane angle adopted under the System International d'Unites |
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radian | the quality of being bright and sending out rays of light |
radian | the amount of electromagnetic radiation leaving or arriving at a point on a surface |
radian | an attractive combination of good health and happiness |
radian | the quality of being bright and sending out rays of light |
radian | radiating or as if radiating light |
radian | energy that is transmitted in the form of (electromagnetic) radiation |
radian | the rate of flow of radiant energy (electromagnetic waves) |
radian | heating a building by radiation from panels containing hot water or electrical heaters |
radian | in a radiant manner |
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