afferent vs lemniscus

afferent and lemniscus both are nouns.

Word	Noun	Adjective	Verb	Adverb
afferent	Yes	Yes	No	No
lemniscus	Yes	No	No	No

As nouns, lemniscus is a hyponym of afferent; that is, lemniscus is a word with a more specific, narrower meaning than afferent:

afferent: a nerve that passes impulses from receptors toward or to the central nervous system
lemniscus: a bundle of sensory nerve fibers going to the thalamus

Other hyponyms of afferent include dorsal horn, dorsal root, posterior horn, posterior root, fillet.

afferent (noun)	lemniscus (noun)
a nerve that passes impulses from receptors toward or to the central nervous system	a bundle of sensory nerve fibers going to the thalamus

afferent (adjective)	lemniscus (adjective)
of nerves and nerve impulses; conveying sensory information from the sense organs to the CNS