insectivore vs eutherian

insectivore and eutherian both are nouns.

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

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

insectivore: small insect-eating mainly nocturnal terrestrial or fossorial mammals
eutherian: mammals having a placenta; all mammals except monotremes and marsupials

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

insectivore (noun)	eutherian (noun)
small insect-eating mainly nocturnal terrestrial or fossorial mammals	mammals having a placenta; all mammals except monotremes and marsupials
any organism that feeds mainly on insects

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