Definition of Postmaster General noun from the Oxford Advanced Learner's Dictionary

     

    Postmaster General

     noun
    noun
    BrE
     
    ; NAmE
     
    (pl. Postmasters General)[singular]
     
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  1. 1until 1969 the person in charge of the British Post Office.
  2. 2the person in charge of the US Postal Service.