9 letters · 12 points in Scrabble
noun mammals having a placenta; all mammals except monotremes and marsupials
adjective of or relating to or belonging to the subclass Eutheria
originFrom Eutheria, from Ancient Greek εὖ (eû, “good, true”) + θηρίον (thēríon, “beast”).
Etymology from Wiktionary, CC BY-SA 3.0