radiance vs visible light

radiance and visible light both are nouns.

Word	Noun	Adjective	Verb	Adverb
radiance	Yes	No	No	No
visible light	Yes	No	No	No

As nouns, visible light is a hypernym of radiance; that is, visible light is a word with a broader meaning than radiance:

radiance: the amount of electromagnetic radiation leaving or arriving at a point on a surface
visible light: (physics) electromagnetic radiation that can produce a visual sensation

Other hypernyms of radiance include light, visible radiation.

radiance (noun)	visible light (noun)
the quality of being bright and sending out rays of light	(physics) electromagnetic radiation that can produce a visual sensation
the amount of electromagnetic radiation leaving or arriving at a point on a surface
an attractive combination of good health and happiness