from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of or belonging to the infraclass Eutheria, a division of mammals to which all the placental mammals belong.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. 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.
from The Century Dictionary and Cyclopedia
- Pertaining to or having characters found in the Eutheria, or placental mammals.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of or relating to or belonging to the subclass Eutheria
- n. mammals having a placenta; all mammals except monotremes and marsupials
From New Latin Euthēria, infraclass name : Greek eu-, eu- + Greek thēria, pl. of thērion, wild animal; see treacle.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Eutheria, from Ancient Greek εὖ (eu, "good, true") + θηρίον (thērion, "beast"). (Wiktionary)