/ Dictionary / Index D duplicating machine: Meaning and Definition of Find definitions for: du'plicating machine" Pronunciation: [key] a duplicator, esp. one for making identical copies of documents, letters, etc. profiler. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. duplicate bridge duplication Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language