Breadcrumb Home > Dictionary > Index D dystonia: Meaning and Definition of Find definitions for: dys•to•ni•a Pronunciation: (dis-tō'nē-u), [key] — n. Pathol. abnormal tone of any tissue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dysthymia dystopia ✖ Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language