Pronunciation: (smī'lu-don"), [key]
any of several saber-toothed cats of the extinct genus Smilodon, that ranged from California through most of South America during the Pleistocene Epoch and had upper canine teeth more than 6 in. (15 cm) long. See illus. under saber-toothed tiger.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.