American English

Definition of mono noun from the Oxford Advanced American Dictionary

     

    mono

     noun
    noun
    NAmE//ˈmɑnoʊ//
     
    [uncountable]
     
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  1. 1a system of recording or producing sound that comes from only one direction recorded in mono compare stereo
  2. 2 (informal) = mononucleosis
See the Oxford Advanced Learner's Dictionary entry: mono