bandsaw vs power saw

bandsaw and power saw both are nouns.

Word	Noun	Adjective	Verb	Adverb
bandsaw	Yes	No	No	No
power saw	Yes	No	No	No

As nouns, power saw is a hypernym of bandsaw; that is, power saw is a word with a broader meaning than bandsaw:

bandsaw: an endless saw consisting of a toothed metal band that is driven around two wheels
power saw: a power tool for cutting wood

Other hypernyms of bandsaw include saw, sawing machine.

bandsaw (noun)	power saw (noun)
an endless saw consisting of a toothed metal band that is driven around two wheels	a power tool for cutting wood