fasciculation

Plural: fasciculations

Noun

• muscular twitching of contiguous groups of muscle fibers
• (toxicology, venoms) An involuntary muscle twitch, usually localised and temporary, but that may be intensified and prolonged fatally by particular poisons and venoms such as acetylcholinesterase inhibitors.
• A cluster of fascicles.
• The process of becoming fasciculate, of growing together in clusters of fascicles.