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aircraft any man-made vehicle that can fly through the air, such as an airplane, helicopter, glider, or balloon.
aircraft carrier a very large warship with a flat upper deck on which airplanes can take off and land.
air curtain a draft of compressed air blown continuously across a doorway, usu. downward, to act as a door in maintaining interior temperature.
airdrome an airport or landing field.
airdrop to deliver by parachute from an aircraft. [2 definitions]
air-dry to allow to dry by the process of evaporation into the air rather than by the use of an appliance. [2 definitions]
Airedale one of a breed of large, long-legged terriers with wiry tan hair and black markings.
airfield a level surface, usu. with one or more paved runways, on which aircraft land and take off; airport.
airflow a flow of air, esp. around a moving vehicle, missile, or the like.
airfoil any aircraft part or surface, such as a wing or rudder, designed to utilize aircurrents to aid in propelling, lifting, and controlling movement.
air force the aviation branch of a nation's military forces, or one of the units under an air command.
air gun a gun that is operated by compressed air and usu. fires small pellets. [2 definitions]
air hole an opening for the intake or discharge of air or gas. [3 definitions]
airily in a lighthearted manner; breezily. [2 definitions]
airiness the quality or condition of being airy or fresh. [2 definitions]
airing an exposure to air or wind, so as to refresh or dry. [3 definitions]
air lane a route regularly used by aircraft; airway.
airless lacking air or fresh air; stuffy. [2 definitions]
air letter an airmail letter. [2 definitions]
airlift the systematic transportation of people or supplies by air when ground routes are impossible or dangerous to use, esp. in a battle zone or during an emergency. [2 definitions]
airline a system of transportation by air offering scheduled flights between various points, or a business that owns and operates the equipment required by such a system. [2 definitions]