/ Dictionary / Index D diplopia: Meaning and Definition of Find definitions for: di•plo•pi•a Pronunciation: (di-plō'pē-u), [key] — n. Ophthalm. a pathological condition of vision in which a single object appears double (opposed to haplopia). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diplopia (Thesaurus) diplophonia diplopod Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language