/ Dictionary / Index V valvular insufficiency: Meaning and Definition of Find definitions for: val'vular insuffi'ciency Pronunciation: [key] — Pathol. Pathol. abnormal closure of a heart valve resulting in failure to prevent regurgitation of blood. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. valvular valvule Related Content Daily Word Quiz: beseech Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language