 WordNet Dictionary |
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| | Definition: | | [n] fibrillation of the muscles of the atria of the heart |
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| | See Also: | | arrhythmia, cardiac arrhythmia, fibrillation |
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| Medical Dictionary |
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| | Definition: | | A disorder of heart rhythm in which the normally regular contractions of theatria of the heart are replaced by rapid and random twitchings, resulting in irregular and usuallyfaster than usual contractions of the ventricles. |
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| Biology Dictionary |
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| | Definition: | | Rapid irregular twitchings of the wall of the atrium (chamber) of the heart. |
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