rotor vs chopper

rotor and chopper both are nouns.

Word	Noun	Adjective	Verb	Adverb
rotor	Yes	No	No	No
chopper	Yes	No	No	No

rotor (noun)	chopper (noun)
rotating mechanism consisting of an assembly of rotating airfoils	a grounder that bounces high in the air
the rotating armature of a motor or generator	a butcher's knife having a large square blade
the revolving bar of a distributor	an aircraft without wings that obtains its lift from the rotation of overhead blades
	informal terms for a human `tooth'