stomatitis vs inflammation

stomatitis and inflammation both are nouns.

Word	Noun	Adjective	Verb	Adverb
stomatitis	Yes	No	No	No
inflammation	Yes	No	No	No

As nouns, inflammation is a hypernym of stomatitis; that is, inflammation is a word with a broader meaning than stomatitis:

stomatitis: inflammation of the mucous membrane of the mouth
inflammation: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of stomatitis include redness, rubor.

stomatitis (noun)	inflammation (noun)
inflammation of the mucous membrane of the mouth	arousal to violent emotion
	the act of setting something on fire
	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat
	the state of being emotionally aroused and worked up