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The definition of spasm

2 Definitions of: spasm

1. noun, an involuntary muscular contraction, esp one resulting in cramp or convulsion
2. noun, a sudden burst of activity, emotion, etc
3. Show me some examples of this word: spasm
4. Show me the etymology of the word: spasm

Synonyms:	contraction, twitch, convulsion, paroxysm, throes (rare), burst, fit, outburst, seizure, frenzy	And more...

From Collins