radiance meaning and definition

RADIANCE noun

Definition of radiance (noun)

1. the amount of electromagnetic radiation leaving or arriving at a point on a surface
   • synonyms: glow, glowing
2. the quality of being bright and sending out rays of light
   • synonyms: effulgence, radiancy, refulgence, refulgency, shine
3. an attractive combination of good health and happiness
   • "the radiance of her countenance"