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white knight
white-knuckle
white-knuckle ride
white lady
white lead
white leather
white lie
white light
white lightning
white line
white list
white-livered
white magic
white mahogany
white man’s burden
white marlin
white matter
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white noise
white noise


noun 
Definition:
 
noise of mixed frequency: low-volume electrical or radio noise of equal intensity over a wide range of frequencies
[By analogy with white light, which contains light from the whole range of visible frequencies]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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