lamplight vs visible radiation

lamplight and visible radiation both are nouns.

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

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

lamplight: light from a lamp
visible radiation: (physics) electromagnetic radiation that can produce a visual sensation

Other hypernyms of lamplight include light, visible light.

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