effector vs nerve fibre

effector and nerve fibre both are nouns.

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

As nouns, nerve fibre is a hypernym of effector; that is, nerve fibre 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 fibre: a threadlike extension of a nerve cell

Other hypernyms of effector include nerve fiber.

effector (noun)	nerve fibre (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