Definition of acoustic adjective from the Oxford Advanced Learner's Dictionary

     

    acoustic

     adjective
    adjective
    BrE BrE//əˈkuːstɪk//
     
    ; NAmE NAmE//əˈkuːstɪk//
     
    (North American English also acoustical
    BrE BrE//əˈkuːstɪkl//
     
    ; NAmE NAmE//əˈkuːstɪkl//
     
    )
    Describing music
     
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  1. 1related to sound or to the sense of hearing
  2. 2[usually before noun] (of a musical instrument or performance) designed to make natural sound, not sound produced by electrical equipment See related entries: Describing music
  3. Word Origin mid 17th cent.: from Greek akoustikos, from akouein ‘hear’.
See the Oxford Advanced American Dictionary entry: acoustic

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