an·ti·noise ( n t -noiz , nt -)adj. 1. Designed to reduce environmental noise, as in a community: an antinoise ordinance. 2. Capable of neutralizing the sound of another noise. n. A technique for neutralizing unwanted sound, in which a second sound wave, identical to but out of phase with the unwanted sound, is used to cancel the unwanted sound. |
antinoise [ˈæntɪˌnɔɪz]
n
(Engineering / General Engineering) sound generated so that it is out of phase with a noise, such as that made by an engine, in order to reduce the noise level by interference
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