tympanitis vs redness

tympanitis and redness both are nouns.

Word	Noun	Adjective	Verb	Adverb
tympanitis	Yes	No	No	No
redness	Yes	No	No	No

As nouns, redness is a hypernym of tympanitis; that is, redness is a word with a broader meaning than tympanitis:

tympanitis: inflammation of the inner ear
redness: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of tympanitis include inflammation, rubor.

tympanitis (noun)	redness (noun)
inflammation of the inner ear	red color or pigment; the chromatic color resembling the hue of blood
	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat