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WordNet-Online 
 Definitions from WordNet
Noun cardiac rhythm has 1 sense 
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| Definitions from the WebCardiac RhythmDefinition: The pattern or sequence of electrical impulses that control the contraction and relaxation of the heart muscles. Senses: 
 Sample Sentences: 
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| cardiac massage cardiac monitor cardiac murmur cardiac muscle cardiac output cardiac pacemaker cardiac plexus cardiac resuscitation cardiac rhythm cardiac snap cardiac sphincter cardiac tamponade cardiac valve cardiacsnap cardiaque cardidom cardiff-based 
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