myo·car·di·um /ˌmaɪəˈkɑrdiəm/
心肌
myo·car·di·um /ˌmaɪəˈkɑrdɪəm/ 名詞
心肌(層)
My·o·car·di·um n. Anat. The main substance of the muscular wall of the heart inclosed between the epicardium and endocardium.
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myocardium
n : the middle muscular layer of the heart wall
[also: myocardia (pl)]