efferent neuron vs efferent

efferent neuron and efferent both are nouns.

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

efferent neuron (noun)	efferent (noun)
a neuron conducting impulses outwards from the brain or spinal cord	a nerve that conveys impulses toward or to muscles or glands

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