a strong current of temperature-controlled air in an entryway, used instead of a door.
The big man with the tiny child on his shoulder pushed through the air curtain that kept the warm humid air out of the shop.
Anything You Can Do … Gordon Randall Garrett
Opposite the air curtain was a huge sliding door, closed at the moment, which probably led to a freight elevator.
Unwise Child Gordon Randall Garrett
an air stream across a doorway to exclude draughts, etc
- Air cushion
an inflatable, airtight cushion. (def 2). an air bag. Historical Examples Politeness is like an air cushion: there may be nothing in it, but it eases our jolts wonderfully. The Man Who Pleases and the Woman Who Charms John A. Cone I don’t know whether someone punctured an air cushion just then, or whether it […]
- Air cushion vehicle
- Air cylinder
a cylinder containing air, especially one equipped with a piston and used as a device for checking the recoil of a gun. Historical Examples The air cylinder was water-jacketed with salt water supplied from the circulating water pumps. Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 B. H. M. Hewett The […]
- Air dam
a spoiler mounted at the front of an automobile to reduce air flow on the underside of the chassis to increase stability. noun any device, such as a spoiler, that reduces air resistance and increases the stability of a car, aircraft, etc