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

     

    wavelength

     noun
    noun
    BrE BrE//ˈweɪvleŋθ//
     
    ; NAmE NAmE//ˈweɪvleŋθ//
     
    Energy and physical forces, Radio technology
     
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  1. 1the distance between two similar points on a wave of energy, such as light or sound See related entries: Energy and physical forces
  2. 2the size of a radio wave that is used by a particular radio station, etc. for sending signals or broadcasting programmes Radio One has broadcast on this wavelength for years. See related entries: Radio technology
  3. Idioms
    be on the same wavelength, be on somebody’s wavelength
     
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    (informal) to have the same way of thinking or the same ideas or feelings as somebody else We work together but we aren’t really on the same wavelength. My boss and I are just not on the same wavelength.
See the Oxford Advanced American Dictionary entry: wavelength