cholangitis vs rubor

cholangitis and rubor both are nouns.

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

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

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

Other hypernyms of cholangitis include inflammation, redness.

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