Definition of acoustics noun from the Oxford Advanced American Dictionary

     

    acoustics

     noun
    noun
    NAmE//əˈkustɪks//
     
     
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  1. 1[plural] (also acoustic [singular]) the shape, design, etc. of a room or theater that make it good or bad for carrying sound The acoustics of the new concert hall are excellent.
  2. 2[uncountable] the scientific study of sound
See the Oxford Advanced Learner's Dictionary entry: acoustics