radiatio optica vs nerve tract

radiatio optica and nerve tract both are nouns.

Word	Noun	Adjective	Verb	Adverb
radiatio optica	Yes	No	No	No
nerve tract	Yes	No	No	No

As nouns, nerve tract is a hypernym of radiatio optica; that is, nerve tract is a word with a broader meaning than radiatio optica:

radiatio optica: a nerve pathway from the lateral geniculate body to the visual cortex
nerve tract: a bundle of myelinated nerve fibers following a path through the brain

Other hypernyms of radiatio optica include nerve pathway, pathway, tract.

radiatio optica (noun)	nerve tract (noun)
a nerve pathway from the lateral geniculate body to the visual cortex	a bundle of myelinated nerve fibers following a path through the brain