/ Dictionary / Index O omnigraph: Meaning and Definition of Find definitions for: om•ni•graph Pronunciation: (om'ni-graf", -gräf"), [key] — n. a device for converting Morse Code signals that are punched on a tape into audio signals, used in the training of telegraph operators. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. omnificent omnipotence Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language