/ Dictionary / Index D duplicator: Meaning and Definition of Find definitions for: du•pli•ca•tor Pronunciation: (d'pli-kā"tur, dy'-), [key] — n. a machine for making duplicates, as a mimeograph. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: duplicator (Thesaurus) duplication of the cube duplicature Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language