Definitions for fibrillationˌfaɪ brəˈleɪ ʃən, or, esp. for 2 , ˌfɪb rə-
Random House Webster's College Dictionary
fi•bril•la•tionˌfaɪ brəˈleɪ ʃən, or, esp. for 2 , ˌfɪb rə-(n.)
uncontrolled twitching or quivering of muscular fibrils. chaotic contractions across the atrium of the heart, causing fast and irregular ventricular activity; arrhythmia.
Category: Pathology
the formation of fibrils.
Category: Developmental Biology
Origin of fibrillation:
1830–40
Princeton's WordNet
fibrillation(noun)
muscular twitching involving individual muscle fibers acting without coordination
fibrillation(noun)
act or process of forming fibrils
Wiktionary
fibrillation(Noun)
The rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart.
Origin: From fibrilla, diminutive of fibra, "fiber," in reference to the muscle strands of the heart.
Webster Dictionary
Fibrillation(noun)
the state of being reduced to fibers
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