9 letters · 15 points in Scrabble
noun any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
adjective of or relating to the class Mammalia
originEtymology tree English mammal Proto-Indo-European *-nós Proto-Italic *-nos Latin -nus Latin -ānus Latin -iānusbor. English -ian English mammalian From mammal + -ian.
Etymology from Wiktionary, CC BY-SA 3.0