visible light vs visible radiation

visible light and visible radiation both are nouns.

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

As nouns, visible light and visible radiation are synonyms defined as:

visible light and visible radiation: (physics) electromagnetic radiation that can produce a visual sensation

Other synonyms of visible light include light.

visible light (noun)	visible radiation (noun)
(physics) electromagnetic radiation that can produce a visual sensation	(physics) electromagnetic radiation that can produce a visual sensation