white noise: Meaning and Definition of

white' noise'

Pronunciation: [key]
  1. Also calleda steady, unvarying, unobtrusive sound, as an electronically produced drone or the sound of rain, used to mask or obliterate unwanted sounds.
  2. random noise with a uniform frequency spectrum over a wide range of frequencies.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.