mitral valve

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noun Anatomy.

the valve between the left atrium and left ventricle of the heart, consisting of two triangular flaps of tissue, that prevents the blood from flowing back into the atrium.

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Also called bicuspid valve.

Compare tricuspid valve.

Origin of mitral valve

First recorded in 1685–95

Words nearby mitral valve

mitra, mitrailleuse, mitral, mitral insufficiency, mitral stenosis, mitral valve, mitre, mitre block, mitre box, mitre gear, mitre joint

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use mitral valve in a sentence

His heart had never regained its old power, and his mitral valve was quite unable to fulfill its function.
Psychotherapy|James J. Walsh
I gave him a sample of what TK means when it's clamped on the mitral valve.
Modus Vivendi|Gordon Randall Garrett
That of the left ventricle has only two flaps, and is therefore often spoken of as the bicuspid or mitral valve.
The Cambridge Natural History, Vol X., Mammalia|Frank Evers Beddard
The left-side valve is the mitral valve, that between the right auricle and ventricle the tricuspid valve.
How it Works|Archibald Williams

The intake valve on the left side of the heart, which is composed of but two flaps, is known as the mitral valve.
Physiology|Ernest G. Martin

British Dictionary definitions for mitral valve

mitral valve

noun

the valve between the left atrium and the left ventricle of the heart, consisting of two membranous flaps, that prevents regurgitation of blood into the atriumAlso called: bicuspid valve

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for mitral valve

mitral valve

[ mī′trəl ]

A valve of the heart, composed of two triangular flaps, that is located between the left atrium and left ventricle. The mitral valve regulates blood flow between the two chambers.