fibril vs paraphysis

fibril and paraphysis both are nouns.

Word	Noun	Adjective	Verb	Adverb
fibril	Yes	No	No	No
paraphysis	Yes	No	No	No

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

fibril: a very slender natural or synthetic fiber
paraphysis: a sterile simple or branched filament or hair borne among sporangia; may be pointed or clubbed

Other hyponyms of fibril include barb, cobweb, gossamer, chromatid, myofibril, myofibrilla, sarcostyle, rhizoid, hypha.

fibril (noun)	paraphysis (noun)
a very slender natural or synthetic fiber	a sterile simple or branched filament or hair borne among sporangia; may be pointed or clubbed