solar collector vs reflector

solar collector and reflector both are nouns.

Word	Noun	Adjective	Verb	Adverb
solar collector	Yes	No	No	No
reflector	Yes	No	No	No

As nouns, reflector is a hypernym of solar collector; that is, reflector is a word with a broader meaning than solar collector:

solar collector: a concave mirror that concentrates the rays of the sun; can produce high temperatures
reflector: device that reflects radiation

solar collector (noun)	reflector (noun)
a concave mirror that concentrates the rays of the sun; can produce high temperatures	device that reflects radiation
	optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece