/ Dictionary / Index E exordium: Meaning and Definition of Find definitions for: ex•or•di•um Pronunciation: (ig-zôr'dē-um, ik-sôr'-), [key] — pl. -di•ums, -di•a the beginning of anything. the introductory part of an oration, treatise, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: exordium (Thesaurus) exorcist exoskeleton Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language