Pronunciation: fi-bri-la'shun, fib-ri-
- The condition of being fibrillated.
- The formation of fibrils.
- Exceedingly rapid contractions or twitching of muscular fibrils, but not of the muscle as a whole.
- 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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Examples: glitazone, GI cocktail, etc.