lemniscus vs afferent

lemniscus and afferent both are nouns.

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

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

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

Other hypernyms of lemniscus include afferent nerve, sensory nerve.

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

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