aardvark vs eutherian

aardvark and eutherian both are nouns.

Word	Noun	Adjective	Verb	Adverb
aardvark	Yes	No	No	No
eutherian	Yes	Yes	No	No

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

aardvark: nocturnal burrowing mammal of the grasslands of Africa that feeds on termites; sole extant representative of the order Tubulidentata
eutherian: mammals having a placenta; all mammals except monotremes and marsupials

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

aardvark (noun)	eutherian (noun)
nocturnal burrowing mammal of the grasslands of Africa that feeds on termites; sole extant representative of the order Tubulidentata	mammals having a placenta; all mammals except monotremes and marsupials

aardvark (adjective)	eutherian (adjective)
	of or relating to or belonging to the subclass Eutheria