daylight vs visible radiation

daylight and visible radiation both are nouns.

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

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

daylight: light during the daytime
visible radiation: (physics) electromagnetic radiation that can produce a visual sensation

Other hypernyms of daylight include light, visible light.

daylight (noun)	visible radiation (noun)
light during the daytime	(physics) electromagnetic radiation that can produce a visual sensation
the time after sunrise and before sunset while it is light outside