What is "eutherian"

a. belonging or pertaining to the group Eutheria, comprising the mammals more closely related to animals like humans and rodents than to marsupials. n. a eutherian animal.

adj. of or relating to or belonging to the subclass Eutheria; "eutherian mammals"

n. mammals having a placenta; all mammals except monotremes and marsupials [syn: placental, placental mammal, eutherian mammal]