antinoise

anti- +‎ noise

antinoise (not comparable)

1. Intended to reduce environmental noise.

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

2. Capable of neutralizing a noise.

   I have invented an antinoise raygun.

antinoise (usually uncountable, plural antinoises)

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.

• anionites, inosinate