radiancy

radiancy

[rey-dee-uhn-see]
noun, plural radiancies.

Origin:
1640–50; radi(ant) + -ancy

nonradiancy, noun
subradiancy, noun
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World English Dictionary
radiance or radiancy (ˈreɪdɪəns)
 
n , pl -ances, -ancies
1.  the quality or state of being radiant
2.  Le a measure of the amount of electromagnetic radiation leaving or arriving at a point on a surface. It is the radiant intensity in a given direction of a small element of surface area divided by the orthogonal projection of this area onto a plane at right angles to the direction
 
radiancy or radiancy
 
n

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