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WordReference Random House Learner's Dictionary of American English © 2024ra•di•ance /ˈreɪdiəns/USA pronunciation n. [uncountable]- radiant brightness or light:the radiance of the dawn.
warm, cheerful brightness:a smile full of radiance. WordReference Random House Unabridged Dictionary of American English © 2024ra•di•ance (rā′dē əns),USA pronunciation n. - radiant brightness or light:the radiance of the tropical sun.
- warm, cheerful brightness:the radiance of her expression.
- Slang Terms[Rare.]radiation.
Also, radiancy. - radi(ant) + -ance 1595–1605
- 1.See corresponding entry in Unabridged . resplendence, splendor, brilliance.
Collins Concise English Dictionary © HarperCollins Publishers:: radiance /ˈreɪdɪəns/, radiancy n ( pl -ances, -ancies)- the quality or state of being radiant
- 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
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