/ Dictionary / Index M myoclonia: Meaning and Definition of Find definitions for: my•o•clo•ni•a Pronunciation: (mī"u-klō'nē-u), [key] — n. Pathol. a disease characterized by myoclonus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. myocardium myoclonus Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language