fibrillation
fib·ril·la·tion
noun
1.
muscular twitching involving individual muscle fibers acting without coordination
Origin
From fibrilla + -ation.
Related words
Word family
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.