/ Dictionary / Index E endodontium: Meaning and Definition of Find definitions for: en•do•don•ti•um Pronunciation: (en"dō-don'shē-um), [key] — n. Dentistry. pulp (def. 4). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. endodontist endoenzyme Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language