white noise

noun

Definition of white noise

  1. 1a :  a heterogeneous mixture of sound waves extending over a wide frequency range — compare pink noiseb :  a constant background noise; especially :  one that drowns out other sounds

  2. 2 :  meaningless or distracting commotion, hubbub, or chatter the white noise of policy and politics in America — Joseph Nocera

1943

First Known Use of white noise

1943


Medical Dictionary

white noise

noun

Medical Definition of white noise

  1. :  a heterogeneous mixture of sound waves extending over a wide frequency range that has been used to mask out unwanted noise interfering with sleep—called also white sound


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