| Pronunciation: | | `endow'kârdeeum
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 WordNet Dictionary |
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| | Definition: | | [n] the membrane that lines the cavities of the heart and forms part of the heart valves |
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| | See Also: | | serosa, serous membrane |
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| Webster's 1913 Dictionary |
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| | Definition: | | \En`do*car"di*um\, n. [NL., fr. Gr. 'e`ndon within +
? heart.] (Anat.)
The membrane lining the cavities of the heart.
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| Medical Dictionary |
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| | Definition: | | the membrane that covers the inside surface of the heart. |
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| Biology Dictionary |
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| | Definition: | | The endocardium is the innermost layer of the three layered walls of the heart. |
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