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
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Using robotics allows surgeons to comfortably maneuver in places that are otherwise quite restrictive, including the pelvis or the left atrium, where the mitral valve is located and where Sloane Guy often works. Avery Hurt, Discover Magazine, 5 Mar. 2025 Her family was told that her heart’s mitral valve had holes in it and would ultimately fail. Vanessa Etienne, People.com, 28 Feb. 2025 Left ventricle: This lower chamber receives oxygenated blood from the left atrium (through the mitral valve) and pumps it to the body through the aortic valve. Patty Weasler, Rn, Bsn, Verywell Health, 13 Feb. 2025 Mary Alice was diagnosed with a congenital heart defect at four months and underwent four open-heart surgeries to receive a new mitral valve. Samantha Moilanen, Chicago Tribune, 11 Feb. 2025 See All Example Sentences for mitral valve

Word History

First Known Use

1696, in the meaning defined above

Time Traveler
The first known use of mitral valve was in 1696

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Cite this Entry

“Mitral valve.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mitral%20valve. Accessed 12 Mar. 2025.

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

More from Merriam-Webster on mitral valve

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