white noise

noun

Definition of white noise

1 a :a heterogeneous mixture of sound waves extending over a wide frequency range — compare pink noise
b :a constant background noise; especially :one that drowns out other sounds
2 :meaningless or distracting commotion, hubbub, or chatter
  • the white noise of policy and politics in America
  • —Joseph Nocera

First Known Use of white noise

1943


Medical Dictionary

white noise

noun

medical Definition of white noise

: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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