naris vs anterior naris

naris and anterior naris both are nouns.

Word	Noun	Adjective	Verb	Adverb
naris	Yes	No	No	No
anterior naris	Yes	No	No	No

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

naris: any of the openings to the nasal cavities that allow air to flow through the cavities to the pharynx
anterior naris: either one of the two external openings to the nasal cavity in the nose

Other hyponyms of naris include nostril, posterior naris, choana, internal nostril, posterior nasal aperture.

naris (noun)	anterior naris (noun)
any of the openings to the nasal cavities that allow air to flow through the cavities to the pharynx	either one of the two external openings to the nasal cavity in the nose