effector vs nerve fiber

effector and nerve fiber both are nouns.

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

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

effector: a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion
nerve fiber: a threadlike extension of a nerve cell

Other hypernyms of effector include nerve fibre.

effector (noun)	nerve fiber (noun)
an organ (a gland or muscle) that becomes active in response to nerve impulses	a threadlike extension of a nerve cell
a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion
one who brings about a result or event; one who accomplishes a purpose