Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun background_noise
1 sense of background noise
Sense 1
background noise, ground noise -- (extraneous noise contaminating sound measurements that cannot be separated from the desired signal)
=> 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")