digitigrade vs mammal

digitigrade and mammal both are nouns.

Word	Noun	Adjective	Verb	Adverb
digitigrade	Yes	Yes	No	No
mammal	Yes	No	No	No

digitigrade (noun)	mammal (noun)
an animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses	any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk

digitigrade (adjective)	mammal (adjective)
(of mammals) walking on the toes with the posterior part of the foot raised (as cats, dogs, and horses do)