AskDefine | Define fibrillation

Dictionary Definition

fibrillation

Noun

1 muscular twitching involving individual muscle fibers acting without coordination
2 act or process of forming fibrils

User Contributed Dictionary

English

Etymology

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

Extensive Definition

Fibrillation is the rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart. There are two major classes of fibrillation, atrial fibrillation and ventricular fibrillation.
Fibrillation may sometimes be used after heart surgery to stop the heart from beating while any minor leaks are stitched up.
fibrillation in Russian: Фибрилляция

Synonyms, Antonyms and Related Words

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