Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun fibrillation

2 senses of fibrillation

Sense 1
fibrillation -- (muscular twitching involving individual muscle fibers acting without coordination)
       => twitch, twitching, vellication -- (a sudden muscle spasm; especially one caused by a nervous condition)

Sense 2
fibrillation -- (act or process of forming fibrils)
       => branching, ramification, fork, forking -- (the act of branching out or dividing into branches)