/ Dictionary / Index S stegodon: Meaning and Definition of Find definitions for: steg•o•don Pronunciation: (steg'u-don"), [key] — n. any extinct elephantlike mammal of the genus Stegodon, from the late Pliocene and Pleistocene epochs, usually considered to be directly ancestral to the modern elephant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stego- stegosaur Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language