Meaning of “mitral valve” in the English Dictionary

british dictionary

"mitral valve" in British English

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mitral valvenoun [ C usually singular ]

uk /ˈmaɪ.trəl ˌvælv/ us /ˈmaɪ.trəl ˌvælv/ specialized

the valve (= a 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)

(Definition of “mitral valve” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)