antinoise

adjective

1. Intended to reduce environmental noise.

- According to the antinoise law, the pubs have to close by midnight.

2. (of a noise) Capable of neutralizing another noise.

- I have invented an antinoise raygun.

noun

1. A sound wave, of the same amplitude but of opposite phase to that of an unwanted sound, that can neutralize the unwanted sound using destructive interference.