radiance has definitions from the fields of physics,medicine
1
[ noun ] (physics) the amount of electromagnetic radiation leaving or arriving at a point on a surface

Synonyms

glowing glow

Used in print

(Clayton C. Barbeau, The Ikon....)

The sharp ray was absorbed by a cloud , then reflected to the earth in a softer , diffused radiance .

Related terms

light aureole

2
[ noun ] the quality of being bright and sending out rays of light
3
[ noun ] (medicine) an attractive combination of good health and happiness

Examples

"the radiance of her countenance"

Related terms

happiness good_health

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