trigonum cerebrale vs fascicle

trigonum cerebrale and fascicle both are nouns.

Word	Noun	Adjective	Verb	Adverb
trigonum cerebrale	Yes	No	No	No
fascicle	Yes	No	No	No

As nouns, fascicle is a hypernym of trigonum cerebrale; that is, fascicle is a word with a broader meaning than trigonum cerebrale:

trigonum cerebrale: an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies
fascicle: a bundle of fibers (especially nerve fibers)

Other hypernyms of trigonum cerebrale include fasciculus, fiber bundle, fibre bundle.

trigonum cerebrale (noun)	fascicle (noun)
an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies	a bundle of fibers (especially nerve fibers)
	an installment of a printed work