ileitis vs rubor

ileitis and rubor both are nouns.

Word	Noun	Adjective	Verb	Adverb
ileitis	Yes	No	No	No
rubor	Yes	No	No	No

As nouns, rubor is a hypernym of ileitis; that is, rubor is a word with a broader meaning than ileitis:

ileitis: inflammation of the ileum
rubor: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of ileitis include inflammation, redness.

ileitis (noun)	rubor (noun)
inflammation of the ileum	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat