'White noise' definitions:
Definition of 'white noise'
From: WordNet
noun
A noise produced by a stimulus containing all of the audible frequencies of vibration; "white noise is a good masking agent"
Definition of 'White noise'
From: GCIDE
- White noise \White noise\, n. a mixture or random noise sounds extending over the entire audible frequency spectrum with approximately equal intensity at all frequencies. It is used in certain experiments, as in psychology, to prevent subjects from hearing meaningful sounds. [PJC]