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air embolism
(Encyclopedia)air embolism: see embolus.air lock
(Encyclopedia)air lock, compartment connecting two different environments, usually at different pressures, that enables personnel to transfer from one environment to the other. Space capsules have air locks to enab...air mass
(Encyclopedia)air mass, large body of air within the earth's atmosphere in which temperature and humidity, although varying at different heights, remain similar throughout the body at any one height. Air masses for...Aïr Massif
(Encyclopedia)Aïr Massif or Aïr Mountains, Africa: see Sahara. ...air plant
(Encyclopedia)air plant: see epiphyte.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 bag
(Encyclopedia)air bag: see automobile.air bladder
(Encyclopedia)air bladder, in fish: see swim bladder. ...air brake
(Encyclopedia)air brake: see brake.air cargo
(Encyclopedia)air cargo: see aviation.Browse by Subject
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