Definition of agitator noun from the Oxford Advanced American Dictionary

     

    agitator

     noun
    noun
    NAmE//ˈædʒəˌteɪt̮ər//
     
     
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  1. 1(disapproving) a person who tries to persuade people to take part in political protest a known agitator and troublemaker
  2. 2the part in the center of a washing machine that helps to move the clothes and water around
See the Oxford Advanced Learner's Dictionary entry: agitator