/ Dictionary / Index S Seilenos: Meaning and Definition of Find definitions for: Sei•le•nos Pronunciation: (sī-lē'nus), [key] — n. Silenus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. seignorial seine Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language