Air-raid shelter
an indoor or other protected area specifically designated as a shelter during an air raid.
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- Air-raid warden
a civilian having special duties during an air-raid alert, as directing people to air-raid shelters. noun a member of a civil defence organization responsible for enforcing regulations, etc, during an air attack
- Air right
a right of way in the air sp-ce above a property owner’s land and the immovable property on it, subject to the public right of air navigation above the property at a legally prescribed alt-tude. such a right sold or leased for use or occupation, especially on a support elevated above an immovable property, as […]
- Air root
air root air root see pneumatoph-r-.
- Air route
a designated route for aircraft flying between particular ground locations at specified minimum alt-tudes. historical examples even house pets were granted the privilege of traveling by the air route. high adventure james norman hall by the air route he had determined to leave, if by any hook or crook schneider and himself could get hold […]
- Air sac
a sac containing air. (def 2). any of certain cavities in a bird’s body connected with the lungs. a saclike dilation of the wall of a trachea in many insects. noun any of the membranous air-filled extensions of the lungs of birds, which increase the efficiency of gaseous exchange in the lungs any of the […]