afferent fiber vs nerve fiber

afferent fiber and nerve fiber both are nouns.

Word	Noun	Adjective	Verb	Adverb
afferent fiber	Yes	No	No	No
nerve fiber	Yes	No	No	No

As nouns, nerve fiber is a hypernym of afferent fiber; that is, nerve fiber is a word with a broader meaning than afferent fiber:

afferent fiber: a nerve fiber that carries impulses toward the central nervous system
nerve fiber: a threadlike extension of a nerve cell

Other hypernyms of afferent fiber include nerve fibre.

afferent fiber (noun)	nerve fiber (noun)
a nerve fiber that carries impulses toward the central nervous system	a threadlike extension of a nerve cell