Any sound which is unwanted or interferes with HEARING other sounds.
Noise Pollution,Noises,Pollution, Noise
D000401
Aircraft
A weight-carrying structure for navigation of the air that is supported either by its own buoyancy or by the dynamic action of the air against its surfaces. (Webster, 1973)
Supplying a building or house, their rooms and corridors, with fresh air. The controlling of the environment thus may be in public or domestic sites and in medical or non-medical locales. (From Dorland, 28th ed)