/ Dictionary / Index E endarterium: Meaning and Definition of Find definitions for: end•ar•te•ri•um Pronunciation: (en"där-tēr'ē-um), [key] — pl. -te•ri•a the innermost lining of an artery. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. endarterectomy en dash Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language