tinea capitis vs tinea

tinea capitis and tinea both are nouns.

Word	Noun	Adjective	Verb	Adverb
tinea capitis	Yes	No	No	No
tinea	Yes	No	No	No

As nouns, tinea is a hypernym of tinea capitis; that is, tinea is a word with a broader meaning than tinea capitis:

tinea capitis: fungal infection of the scalp characterized by bald patches
tinea: infections of the skin or nails caused by fungi and appearing as itching circular patches

Other hypernyms of tinea capitis include ringworm, roundworm.

tinea capitis (noun)	tinea (noun)
fungal infection of the scalp characterized by bald patches	infections of the skin or nails caused by fungi and appearing as itching circular patches