ainhumA painful constriction of the base of the fifth toe, frequently followed by autoamputation, occurring predominantly in black Africans and their descendants.
AinthorpeA village in Danby parish, North Yorkshire, England, previously in Scarborough district (OS grid ref SE7008).
AintreeA village in the Metropolitan Borough of Sefton, Merseyside, England; the home of the Grand National. (OS grid ref SJ3798).
AinuA member of the ethnic group indigenous to the northern Japanese island of Hokkaido.
AinuicOf or pertaining to the proposed Ainuic language family.
AinulandThe land of the Ainu people, historically defined as northern Honshu, Hokkaido, and southern part of Sakhalin, the Kuril Islands, and the southernmost tip of Kamchatka.
AiravataName of the mythological white elephant, mount of Indra.
airbagA protective system in automobiles in which when a crash occurs, a bag containing nitrogen, formed by the explosive decomposition of sodium azide, quickly inflates in front of the driver or passenger, preventing injury to the head. Side air bags, including the back seat passengers, also prevent injury.
airbeamA support element for a lightweight structure such as a tent consisting of an inflatable tube or similar length of material given shape by being filled with air.
airbombA firework consisting of flash powder in a paper case, ejected into the air with a black powder lifting charge ignited by a fuse, and producing a loud bang and bright flash.
airbreathingUsing the air from the atmosphere for combustion
airbridgeThe route and aircraft used to deliver material by an airlift.
airbrushA miniature, handheld paint sprayer, powered by compressed air or other gas, used for delicate, artistic painting, or sometimes retouching of photographs.
airbrushedHaving been manipulated with an airbrush.
airfieldAn open field designated for the taking off and landing of aircraft, but which, unlike an airport, does not necessarily have terminals or paved runways.
airflareIn breakdancing, an acrobatic maneuver in which the performer, standing on his or her hands, rotates the torso around the vertical axis of the body (extending from the head down vertically) while travelling in a circular path along a plane parallel to the floor.
airfleetA fleet of (civilian or military) aircraft.
airflowAny flow of air, especially the motion of air around a moving aircraft or aerofoil.
airflownFreshly imported; flown in from another country.
airfoilA structure shaped to produce lift when moving in air.
airglowA faint illumination in the sky due to photochemical luminescence in the upper atmosphere, now rarely observed by earthbound humans without the assistance of instruments.