efferent fiber vs motor fiber

efferent fiber and motor fiber both are nouns.

Word	Noun	Adjective	Verb	Adverb
efferent fiber	Yes	No	No	No
motor fiber	Yes	No	No	No

As nouns, efferent fiber and motor fiber are synonyms defined as:

efferent fiber and motor fiber: a nerve fiber that carries impulses toward the muscles or glands

efferent fiber (noun)	motor fiber (noun)
a nerve fiber that carries impulses toward the muscles or glands	a nerve fiber that carries impulses toward the muscles or glands