reactor vs electrical device

reactor and electrical device both are nouns.

Word	Noun	Adjective	Verb	Adverb
reactor	Yes	No	No	No
electrical device	Yes	No	No	No

As nouns, electrical device is a hypernym of reactor; that is, electrical device is a word with a broader meaning than reactor:

reactor (noun)	electrical device (noun)
(physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements	a device that produces or is powered by electricity
an electrical device used to introduce reactance into a circuit