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signal-to-noise ratio
sig·nal-to-noise ra·tio (plural sig·nal-to-noise ra·tios)


noun 
Definition:
 
ratio of information to interference: the ratio of the strength of a signal carrying information to unwanted interference in an electronic circuit
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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