Definition of attenuation in English:



  • 1[mass noun] The reduction of the force, effect, or value of something:

    ‘human security required the attenuation of a wide range of threats to people’
    • ‘This complete attenuation of human impulse speaks volumes.’
    • ‘Attenuation of pelvic girdle pain was greatest in the acupuncture group.’
    • ‘The heavier cognitive load required to create these relationships may have resulted in a certain attenuation in motivation.’
    • ‘Fathers often have expressed fear of the potential attenuation of their relationships with their children.’
    • ‘He believed that true internationalism would result only through the attenuation of nationalism.’
    • ‘Previous studies in adults have demonstrated marked attenuation of this reflex, even in the lighter stages of sleep.’
    • ‘The statistics emerging from the present survey does suggest some attenuation in the level of public dissatisfaction with sentence severity.’
    • ‘Relationship skills acquired through relationship education are maintained over a period of some years, though attenuation of training effects may occur over a 5 to 10 year period.’
    • ‘The narcotic drugs produce an excellent blend of direct pain reduction and the attenuation of the psychological trauma associated with pain.’
    • ‘It is possible that it is not age itself that causes the attenuation of creativity.’
    1. 1.1 The reduction of the amplitude of a signal, electric current, or other oscillation:
      ‘the products are used mostly by aircraft manufacturers for noise attenuation in engine housings’
      [count noun] ‘attenuations of the order of 50 to 200 dB are required’
      • ‘This could be the result of multiple reflections on obstacles, or attenuations inherent to the broadcasting medium.’
      • ‘We directly measured the attenuation of light.’
      • ‘The attenuation also varies with the actual wavelength selected.’
      • ‘The degree of attenuation is going to depend on a number of things including antenna size.’
      • ‘The muffs have excellent noise attenuation in that they will bring the decibels down to a tolerable level.’