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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Her lawyers cite a worsening heart condition, including mitral valve prolapse, significant weight loss and other complications, arguing jail lacks the conditions for recovery after invasive cardiac procedures. Los Angeles Times, 11 Sep. 2026 Donnelly said Flores has not received her monthly injection for her mitral valve prolapse since her incarceration. Chloe Atkins, NBC news, 10 Sep. 2026 Hashim said the health issue, leaky mitral valve disease, does not follow a law or rule of genetic inheritance, but occasionally there can be a family pattern. Helen I. Bennett, Hartford Courant, 7 May 2026 These soft robotic parts contract to copy the movement of the ventricle and the natural motion of the mitral valve. Munis Raza, Interesting Engineering, 5 Mar. 2026 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 18 Sep. 2026.

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

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