mitral valve

noun

: a cardiac valve consisting of two triangular flaps which allow only unidirectional blood flow from the left atrium to the left ventricle

called also bicuspid valve

Examples of mitral valve in a Sentence

Recent Examples on the Web

In her 40s, she was diagnosed with a leaky mitral valve. —Vanessa Etienne, People.com, 12 June 2025

The mitral valve is positioned between the heart’s left atrium and ventricle. —Patty Weasler, Rn, Bsn, Verywell Health, 13 Feb. 2025

Labrador retrievers are prone to a degenerative eye disease known as progressive retinal atrophy, while Cavalier King Charles spaniels often develop a heart condition called mitral valve disease. —Emily Anthes, New York Times, 9 Feb. 2025

Two patients have successfully had their mitral valve, which controls blood flow between the upper and lower chambers of the second side of the heart, replaced by robotic surgery. —Amy Feldman, Forbes, 12 Mar. 2025

Word History

First Known Use

1696, in the meaning defined above

Rhymes for mitral valve

• bivalve

Medical Definition

mitral valve

noun

: a valve in the heart that guards the opening between the left atrium and the left ventricle, prevents the blood in the ventricle from returning to the atrium, and consists of two triangular flaps attached at their bases to the fibrous ring which surrounds the opening and connected at their margins with the ventricular walls by the chordae tendineae and papillary muscles

called also bicuspid valve, left atrioventricular valve