mitral valve

noun

Definition of mitral valve

: 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

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Heart-valve disease can afflict one valve or several in combination, but the aortic and mitral valves are the ones most frequently affected. — Marlene Cimons, Washington Post, "Latest heart valve treatment allows more patients to avoid open-heart surgery," 10 June 2018 Rejuvenate wants to start by extending the lifespans of Cocker spaniels and Doberman pinschers, who are prone to fatal heart diseases like ailment mitral valve disease, which kills about half of Cavalier King Charles spaniels by age 10. — Laura Yan, Popular Mechanics, "This Secretive Harvard Startup is Trying to Reverse Aging," 13 May 2018 Jeanette The tiny bacteria multiplied quickly in her heart, settling like clinging caterpillar feet on the delicate leaflets of her mitral valve. — Tom Hallman Jr., OregonLive.com, "The meaning of a mother's love through a doctor's diary: Tom Hallman," 12 May 2018 In March, Jed went for a routine physical and learned there was a congenital, worsening defect in his mitral valve; the doctor recommended surgery. — Anndee Hochman, Philly.com, "The Parent Trip: Alice Worrall and Jed Shambeda of Cheltenham," 5 Mar. 2018 As part of Edwards, the Harpoon team will continue research and development and clinical trials for their device, which is designed to shorten the procedure and recovery periods for mitral valve repair. — Sarah Gantz, baltimoresun.com, "Abell Foundation earns $5.2 million on Harpoon Medical acquisition," 19 Dec. 2017 Six weeks later, the 43-year-old father of two was undergoing open-heart surgery to repair a faulty mitral valve. — Emily Sohn, Washington Post, "If you exercise a lot, you probably think your heart is in good shape. Maybe not.," 7 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mitral valve.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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The first known use of mitral valve was in 1696

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mitral valve

noun

Medical Definition of mitral valve

: 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