/ Dictionary / Index A aortitis: Meaning and Definition of Find definitions for: a•or•ti•tis Pronunciation: (ā"ôr-tī'tis), [key] — n. Pathol. inflammation of the aorta. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aortitis (Thesaurus) aortic valve aortoclasia 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