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Aïr Massif
(Encyclopedia)Aïr Massif or Aïr Mountains, Africa: see Sahara. ...air pollution
(Encyclopedia)air pollution, contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health. The major sources of air pollution are t...air navigation
(Encyclopedia)air navigation, science and technology of determining the position of an aircraft with respect to the surface of the earth and accurately maintaining a desired course (see navigation). Basic to air ...air transportation
(Encyclopedia)air transportation: see aviation. ...air bag
(Encyclopedia)air bag: see automobile.air cargo
(Encyclopedia)air cargo: see aviation.air plant
(Encyclopedia)air plant: see epiphyte.air embolism
(Encyclopedia)air embolism: see embolus.air brake
(Encyclopedia)air brake: see brake.air bladder
(Encyclopedia)air bladder, in fish: see swim bladder. ...Browse by Subject
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