Breadcrumb Home > Dictionary > Index D diacritic: Meaning and Definition of Find definitions for: di•a•crit•ic Pronunciation: (dī"u-krit'ik), [key] —adj. diacritical. diagnostic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diacritic (Thesaurus) diaconicon diacritical ✖ Related Content Daily Word Quiz: quadrumanous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language