/ Dictionary / Index E epimysium: Meaning and Definition of Find definitions for: ep•i•my•si•um Pronunciation: (ep"u-miz'ē-um, -mizh'-), [key] — pl. -my•si•a the sheath of connective tissue around a muscle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. epimyocardium Épinal Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language