单词	epicardium
释义	epicardium noun epi·​car·​di·​um ˌe-pə-ˈkär-dē-əm  plural epicardia ˌe-pə-ˈkär-dē-ə  : the inner layer of the pericardium that closely envelops the heart epicardial ˌe-pə-ˈkär-dē-əl  adjective Example Sentences Recent Examples on the Web The organoids are about 2 millimeters in diameter and include the main types of cells typically present in this stage of development: cardiomyocytes, epithelial cells, fibroblasts, and epicardium. Sofia Moutinho, Science | AAAS, 20 May 2021 Word History Etymology New Latin First Known Use circa 1860, in the meaning defined above Medical Definition epicardium noun epi·​car·​di·​um -ē-əm  plural epicardia -ē-ə  : the visceral part of the pericardium that closely envelops the heart called also visceral pericardium compare parietal pericardium
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