background (n)
background signal (n)

n07430480

type n
lex_filenum 11
def extraneous signals that can be confused with the phenomenon to be observed or measured
examples they got a bad connection and could hardly hear one another over the background signals
Outgoing links
Hypernym noise, interference, disturbance
Hyponym background noise, ground noise; background radiation
Incoming links
Hyponym noise, interference, disturbance
Hypernym background noise, ground noise; background radiation

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