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background signal
 
Noun background signal has 1 sense
  1. background, background signal - extraneous signals that can be confused with the phenomenon to be observed or measured; "they got a bad connection and could hardly hear one another over the background signals"
    --1 is a kind of noise, interference, disturbance
    --1 has particulars: background noise, ground noise; background radiation
background background information background knowledge background level background model background noise background processing background radiation background signal background to the text backgrounder backgrounding backgrounds backguard backhand backhand drive backhand shot

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