radiance

[ rey-dee-uhns ]
/ ˈreɪ di əns /

noun

radiant brightness or light: the radiance of the tropical sun.
warm, cheerful brightness: the radiance of her expression.
Rare. radiation.
Also radiancy.

Origin of radiance

First recorded in 1595–1605; radi(ant) + -ance

OTHER WORDS FROM radiance

non·ra·di·ance, noun sub·ra·di·ance, noun su·per·ra·di·ance, noun

Example sentences from the Web for radiance

British Dictionary definitions for radiance

radiance

radiancy

/ (ˈreɪdɪəns) /

noun plural -ances or -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 Symbol: L e

Medical definitions for radiance

radiance
[ rādē-əns ]

n.

The quality or state of being radiant.
The radiant energy emitted per unit time in a specified direction by a unit area of an emitting surface.