efferent fiber vs efferent

efferent fiber and efferent both are nouns.

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

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

efferent fiber (adjective)	efferent (adjective)
	of nerves and nerve impulses; conveying information away from the CNS