digitigrade vs eutherian mammal

digitigrade and eutherian mammal both are nouns.

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

As nouns, eutherian mammal is a hypernym of digitigrade; that is, eutherian mammal is a word with a broader meaning than digitigrade:

digitigrade: an animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses
eutherian mammal: mammals having a placenta; all mammals except monotremes and marsupials

Other hypernyms of digitigrade include eutherian, placental, placental mammal.

digitigrade (noun)	eutherian mammal (noun)
an animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses	mammals having a placenta; all mammals except monotremes and marsupials

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