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mitral valve

noun [C usually sing]
 
 
/ˈmaɪ.trəlˌvælv/ specialized

Definition

the valve (= structure that opens and closes) in the heart that stops blood from returning into the left atrium (= upper space) from the left ventricle (= lower space) → Compare tricuspid valveThe circulatory system and blood
(Definition of mitral valve noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of mitral valve