Dictionary

white noise

noun

: a constant noise (such as that the noise from a television or radio that is turned on but is not receiving a clear signal) that is a mixture of many different sound waves

Full 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

Rhymes with WHITE NOISE

white noise

noun    (Medical Dictionary)

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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