fibrillation

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English[edit]

Etymology[edit]

From New Latin fibrilla, diminutive of Latin fibra, "fiber," in reference to the muscle strands of the heart.

Noun[edit]

fibrillation ‎(countable and uncountable, plural fibrillations)

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

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