Definitions for radianceˈreɪ di əns

This page provides all possible meanings and translations of the word radiance

Random House Webster's College Dictionary

ra•di•anceˈreɪ di əns(n.)

also ra′di•an•cy

  1. radiant brightness or light.

  2. warm, cheerful brightness.

Origin of radiance:

1595–1605

Princeton's WordNet

  1. radiance, glow, glowing(noun)

    the amount of electromagnetic radiation leaving or arriving at a point on a surface

  2. radiance, radiancy, shine, effulgence, refulgence, refulgency(noun)

    the quality of being bright and sending out rays of light

  3. radiance(noun)

    an attractive combination of good health and happiness

    "the radiance of her countenance"

Wiktionary

  1. radiance(Noun)

    the quality of being radiant, shining, bright or splendid

    Girt with omnipotence, with radiance crowned. uE000197485uE001 Milton.

  2. radiance(Noun)

    the flux of radiation emitted per unit solid angle in a given direction by a unit area of a source

  3. Origin: From radiare + -ance

Webster Dictionary

  1. Radiance(noun)

    alt. of Radiancy

Freebase

  1. Radiance

    Radiance and spectral radiance are measures of the quantity of radiation that passes through or is emitted from a surface and falls within a given solid angle in a specified direction. They are used in radiometry to characterize diffuse emission and reflection of electromagnetic radiation. In astrophysics, radiance is also used to quantify emission of neutrinos and other particles. The SI unit of radiance is watts per steradian per square metre, while that of spectral radiance is W·sr−1·m−2·Hz−1 or W·sr−1·m−3 depending on if the spectrum is a function of frequency or of wavelength.


Translations for radiance

Kernerman English Multilingual Dictionary

radiance(noun)

the radiance of her smile.

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