Excess noise which is unpleasant or harmful.

(electrical engineering) The ratio comparing signal power to noise power. / (by extension) The quantity of quality information compared to irrelevant or incorrect information.

(computing) Spurious characters due to signal noise in a communications link. / (programming) Data that looks random, as when outputting a binary file as text.

violet noise

plural of noise word

(programming) A word that may be included in source code for clarity but does not change the meaning. / (computing) A stop word, one ignored in search queries etc.

(music) A predominantly European noisy genre of electronic music.

Technical silence. Noise that has a frequency spectrum of predominantly zero power level over all frequencies except for a few narrow bands or spikes.

(sound, headphones) the active cancellation of outside noise by creation of an inverse waveform to null out noise soundwaves within the subject environment

(US, Canada, slang, vulgar) Used to express rejection of or objection to something.