Breadcrumb Home > Dictionary > Index A aortic insufficiency: Meaning and Definition of Find definitions for: aor'tic insuffi'ciency Pronunciation: [key] — Pathol. Pathol. abnormal closure of the aortic valve resulting in regurgitation of blood to the left ventricle. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aortic arch aortic stenosis TrendingHere are the facts and trivia that people are buzzing about. Who's Who in the "Lord of the Rings" Roman Catholic Church Hierarchy Current Events This Week: March 2023 42 Top Western Movie Quotes Slaves in the Family User's Guide to Environmental Language ✖ Related Content Daily Word Quiz: irascible Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language