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Dictionary

white' noise'

1. Also called white sound. a steady, unvarying, unobtrusive sound, as an electronically produced drone or the sound of rain, used to mask or obliterate unwanted sounds.
2. Physics.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.

whitening

white oak

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