chopper vs rotor

chopper and rotor both are nouns.

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

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