Air jacket
(Air" jack`et) A jacket having air-tight cells, or cavities which can be filled with air, to render
persons buoyant in swimming.
Airless
(Air"less) a. Not open to a free current of air; wanting fresh air, or communication with the open
air.
Air level
(Air" lev`el) Spirit level. See Level.
Airlike
(Air"like`) a. Resembling air.
Airling
(Air"ling) n. A thoughtless, gay person. [Obs.] "Slight airlings." B. Jonson.
Airometer
(Air*om"e*ter) n. [Air + - meter.] A hollow cylinder to contain air. It is closed above and
open below, and has its open end plunged into water.
Air pipe
(Air" pipe`) A pipe for the passage of air; esp. a ventilating pipe.
Air plant
(Air" plant`) (Bot.) A plant deriving its sustenance from the air alone; an aërophyte.
The "Florida moss" many tropical orchids, and most mosses and lichens are air plants. Those which are
lodged upon trees, but not parasitic on them, are epiphytes.
Air poise
(Air" poise`) [See Poise.] An instrument to measure the weight of air.
Air pump
(Air" pump`)
1. (Physics) A kind of pump for exhausting air from a vessel or closed space; also, a pump to condense
air or force it into a closed space.
2. (Steam Engines) A pump used to exhaust from a condenser the condensed steam, the water used
for condensing, and any commingled air.
Air sac
(Air" sac`) (Anat.) One of the spaces in different parts of the bodies of birds, which are filled with
air and connected with the air passages of the lungs; an air cell.
Air shaft
(Air" shaft`) A passage, usually vertical, for admitting fresh air into a mine or a tunnel.
Air-slacked
(Air"-slacked`) a. Slacked, or pulverized, by exposure to the air; as, air-slacked lime.
Air stove
(Air" stove`) A stove for heating a current of air which is directed against its surface by means
of pipes, and then distributed through a building.
Air-tight
(Air"-tight`) a. So tight as to be impermeable to air; as, an air-tight cylinder.
Air-tight
(Air"-tight`), n. A stove the draft of which can be almost entirely shut off. [Colloq. U. S.]
Air vessel
(Air" ves`sel) A vessel, cell, duct, or tube containing or conducting air; as the air vessels of
insects, birds, plants, etc.; the air vessel of a pump, engine, etc. For the latter, see Air chamber. The
air vessels of insects are called tracheæ, of plants spiral vessels.
Airward
(Air"ward Air"wards) adv. Toward the air; upward. [R.] Keats.
Airy
(Air"y) a.
1. Consisting of air; as, an airy substance; the airy parts of bodies.
2. Relating or belonging to air; high in air; aërial; as, an airy flight. "The airy region." Milton.
