/ Dictionary / Index E epineurium: Meaning and Definition of Find definitions for: ep•i•neu•ri•um Pronunciation: (ep"u-noor'ē-um, -nyoor'-), [key] — pl. -neu•ri•a the dense sheath of connective tissue that surrounds the trunk of a nerve. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. epinephrine épinglé Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language