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mitral valve

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noun Anatomy.
  1. 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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Origin of mitral valve

First recorded in 1685–95
Also called bicuspid valve.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for mitral valve

mitral valve

noun
  1. 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
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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

mitral valve in Medicine

mitral valve

n.
  1. A valve of the heart, composed of two triangular flaps, that is located between the left atrium and left ventricle and regulates blood flow between these chambers.bicuspid valve left atrioventricular valve
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

mitral valve in Science

mitral valve

[mītrəl]
  1. 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.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.