Definition of spasm noun from the Oxford Advanced American Dictionary

     

    spasm

     noun
    noun
    NAmE//ˈspæzəm//
     
     
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  1. 1[countable, uncountable] a sudden and often painful contracting of a muscle, that you cannot control a muscle spasm The injection sent his leg into spasm.
  2. 2[countable] spasm (of something) a sudden strong feeling or reaction that lasts for a short time a spasm of anxiety/anger/coughing/pain, etc.
See the Oxford Advanced Learner's Dictionary entry: spasm