单词 | pericardium |
释义 | pericardiumnoun peri·car·di·um ˌper-ə-ˈkär-dē-əm plural pericardia ˌper-ə-ˈkär-dē-ə 1 : the conical sac of serous membrane that encloses the heart and the roots of the great blood vessels of vertebrates 2 : a cavity or space that contains the heart of an invertebrate and in arthropods is a part of the hemocoel |
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