/ Dictionary / Index S Seleucidan: Meaning and Definition of Find definitions for: Se•leu•ci•dan Pronunciation: (si-l'si-dn), [key] — adj. Seleucid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Seleucid Seleucus Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language