twitching

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a sudden muscle spasm;
especially one caused by a nervous condition
• Syn:
twitch, vellication
• Derivationally related forms:
vellicate (for: vellication), twitch, twitch (for: twitch)
• Hypernyms:
spasm, cramp, muscle spasm
• Hyponyms:
tic, blepharism, fibrillation, fasciculation