otitis interna vs otitis

otitis interna and otitis both are nouns.

Word	Noun	Adjective	Verb	Adverb
otitis interna	Yes	No	No	No
otitis	Yes	No	No	No

As nouns, otitis is a hypernym of otitis interna; that is, otitis is a word with a broader meaning than otitis interna:

otitis interna: inflammation of the inner ear; can cause vertigo and vomiting
otitis: inflammation of the ear

otitis interna (noun)	otitis (noun)
inflammation of the inner ear; can cause vertigo and vomiting	inflammation of the ear