Definition of petitioner noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//pəˈtɪʃənə(r)//
    ; NAmE NAmE//pəˈtɪʃənər//
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  1. 1a person who organizes or signs a petition
  2. 2(law) a person who asks a court to take a particular course of action
  3. 3(formal) a person who makes a formal request to somebody in authority
See the Oxford Advanced American Dictionary entry: petitioner