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ODEradiance

radiance

Flag: gbEnglishOxford Dictionary of English

radiance /ˈreɪdiən(t)s /
noun [mass noun]
1 light or heat as emitted or reflected by something:
the radiance of the sunset dwindled and died.
great joy or love, apparent in someone's expression or bearing:
the radiance of the bride's smile.
a glowing quality of the skin, especially as indicative of good health or youth:
restore your skin's natural radiance.
2 Physics the flux of radiation emitted per unit solid angle in a given direction by a unit area of a source.