n.
Function: noun
Date: 1523
1 : an act of twitching especially : a short sudden pull or jerk
2 : a physical or mental pang <a twitch of remorse>
3 : a loop of rope or strap that is tightened over a horse's lip as a restraining device
4 a : a brief spasmodic contraction of the muscle fibers b : a slight jerk of a body part
– twitch · i · ly \ ' twi-ch ə -l ē \ adverb
– twitchy \ ' twi-ch ē \ adjective