/ Dictionary / Index M myocarditis: Meaning and Definition of Find definitions for: my•o•car•di•tis Pronunciation: (mī"ō-kär-dī'tis), [key] — n. Pathol. inflammation of the myocardium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: myocarditis (Thesaurus) myocardiograph myocardium 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