enteritis vs redness

enteritis and redness both are nouns.

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

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

enteritis: inflammation of the intestine (especially the small intestine); usually characterized by diarrhea
redness: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of enteritis include inflammation, rubor.

enteritis (noun)	redness (noun)
inflammation of the intestine (especially the small intestine); usually characterized by diarrhea	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