/ Dictionary / Index S smilodon: Meaning and Definition of Find definitions for: smi•lo•don Pronunciation: (smī'lu-don"), [key] — n. 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 Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. smiley smirch Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language