Columbia Encyclopedia

Search results

500 results found

air bag

(Encyclopedia)air bag: see automobile.

air bladder

(Encyclopedia)air bladder, in fish: see swim bladder. ...

air cargo

(Encyclopedia)air cargo: see aviation.

air conditioning

(Encyclopedia)CE5 Cross section of air conditioning unit. air conditioning, mechanical process for controlling the humidity, temperature, cleanliness, and circulation of air in buildings and rooms. Indoor air i...

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.

Browse by Subject