Definitions for fibrillationˌfaɪ brəˈleɪ ʃən, or, esp. for 2 , ˌfɪb rə-

This page provides all possible meanings and translations of the word fibrillation

Random House Webster's College Dictionary

fi•bril•la•tionˌfaɪ brəˈleɪ ʃən, or, esp. for 2 , ˌfɪb rə-(n.)

  1. uncontrolled twitching or quivering of muscular fibrils. chaotic contractions across the atrium of the heart, causing fast and irregular ventricular activity; arrhythmia.

    Category: Pathology

  2. the formation of fibrils.

    Category: Developmental Biology

Origin of fibrillation:


Princeton's WordNet

  1. fibrillation(noun)

    muscular twitching involving individual muscle fibers acting without coordination

  2. fibrillation(noun)

    act or process of forming fibrils


  1. fibrillation(Noun)

    The rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart.

  2. Origin: From fibrilla, diminutive of fibra, "fiber," in reference to the muscle strands of the heart.

Webster Dictionary

  1. Fibrillation(noun)

    the state of being reduced to fibers


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