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fibrillation

Pronunciation: fi-bri-la'shun, fib-ri-

Definition:

  1. The condition of being fibrillated.
  2. The formation of fibrils.
  3. Exceedingly rapid contractions or twitching of muscular fibrils, but not of the muscle as a whole.
  4. Vermicular twitching, usually slow, of individual muscular fibers; commonly occurs in atria or ventricles of the heart as well as in recently denervated skeletal muscle fibers.
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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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