/ Dictionary / Index E endaortitis: Meaning and Definition of Find definitions for: end•a•or•ti•tis Pronunciation: (en"dā-ôr-tī'tis), [key] — n. Pathol. an inflammation of the innermost lining of the aorta. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. endangered species endarch Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language