Air cock Air" cock` A faucet to allow escape of air.
Air cooling Air cooling In gasoline-engine motor vehicles, the cooling of the cylinder by increasing its radiating surface by means of ribs or radiators, and placing it so that it is exposed to a current of air. Confer Water cooling . --
Air"- cooled` ,
adjective
Air drill Air" drill` A drill driven by the elastic pressure of condensed air; a pneumatic drill. Knight.
Air engine Air" engine` An engine driven by heated or by compressed air. Knight.
Air gap Air gap (Physics) An air-filled gap in a magnetic or electric circuit; specif., in a dynamo or motor, the space between the field-magnet poles and the armature; clearance.
Air gas Air" gas` See under Gas .
Air gun Air" gun` (gŭn`). A kind of gun in which the elastic force of condensed air is used to discharge the ball. The air is powerfully compressed into a reservoir attached to the gun, by a condensing pump, and is controlled by a valve actuated by the trigger.
Air hole Air" hole` (hōl`). 1. A hole to admit or discharge air; specifically, a spot in the ice not frozen over. 2. (Founding) A fault in a casting, produced by a bubble of air; a blowhole.
Air hole Air hole (Aëronautics) A local region in the atmosphere having a downward movement and offering less than normal support for the sustaining surfaces of a flying machine.
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.
Air level Air" lev`el Spirit level. See Level .
Air line Air line A path through the air made easy for aërial navigation by steady winds.
Air pipe Air" pipe` A pipe for the passage of air; esp. a ventilating pipe.
Air plant Air" plant` (Botany) A plant deriving its sustenance from the air alone; an aërophyte. » The "Florida moss" ( Tillandsia ), 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 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 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 .
Air-built Air"-built` adjective Erected in the air; having no solid foundation; chimerical; as, an air-built castle.
Air-drawn Air"-drawn" adjective Drawn in air; imaginary. This is the air-drawn dagger.
Shak.
Air-slacked Air"-slacked` adjective Slacked, or pulverized, by exposure to the air; as, air-slacked lime.
Air-tight Air"-tight` adjective So tight as to be impermeable to air; as, an air-tight cylinder.
Air-tight Air"-tight` noun A stove the draft of which can be almost entirely shut off. [ Colloq. U. S.]
Aircraft Air"craft` noun sing. & plural Any device, as a balloon, aëroplane, etc., for floating in, or flying through, the air.
Airer Air"er noun 1. One who exposes to the air. 2. A frame on which clothes are aired or dried.
Airily Air"i·ly (âr"ĭ*lȳ)
adverb In an airy manner; lightly; gaily; jauntily; flippantly.
Airiness Air"i·ness noun 1. The state or quality of being airy; openness or exposure to the air; as, the airiness of a country seat. 2. Lightness of spirits; gayety; levity; as, the airiness of young persons.
Airing Air"ing (âr"ĭng)
noun 1. A walk or a ride in the open air; a short excursion for health's sake. 2. An exposure to air, or to a fire, for warming, drying, etc.; as, the airing of linen, or of a room.
Airless Air"less adjective Not open to a free current of air; wanting fresh air, or communication with the open air.
Airlike Air"like` adjective Resembling air.
Airling Air"ling noun A thoughtless, gay person. [ Obsolete] "Slight
airlings ."
B. Jonson.
Airman Air"man noun A man who ascends or flies in an aircraft; a flying machine pilot.
Airmanship Air"man·ship noun Art, skill, or ability in the practice of aërial navigation.
Airol Air"ol noun (Pharm.) A grayish green antiseptic powder, consisting of a basic iodide and gallate of bismuth, sometimes used in place of iodoform. [ A Trademark]
Airometer Air·om"e·ter noun [
Air +
- meter .]
A hollow cylinder to contain air. It is closed above and open below, and has its open end plunged into water.
Airsick Air`sick` adjective Affected with aërial sickness . --
Air"sick`ness ,
noun
Airward, Airwards Air"ward, Air"wards adverb Toward the air; upward. [ R.]
Keats.
Airwoman Air"wom`an noun A woman who ascends or flies in an aircraft.
Airy Air"y adjective 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. 3. Open to a free current of air; exposed to the air; breezy; as, an airy situation. 4. Resembling air; thin; unsubstantial; not material; airlike. "An
airy spirit."
Shak. 5. Relating to the spirit or soul; delicate; graceful; as, airy music. 6. Without reality; having no solid foundation; empty; trifling; visionary. "
Airy fame."
Shak. Empty sound, and airy notions.
Roscommon.
7. Light of heart; vivacious; sprightly; flippant; superficial. "Merry and
airy ."
Jer. Taylor. 8. Having an affected manner; being in the habit of putting on airs; affectedly grand. [ Colloq.]
9. (Paint.) Having the light and aërial tints true to nature. Elmes.
Aisle Aisle noun [ Old French
ele , French
aile , wing, wing of a building, Latin
ala , contr. from
axilla .]
(Architecture) (a) A lateral division of a building, separated from the middle part, called the nave, by a row of columns or piers, which support the roof or an upper wall containing windows, called the clearstory wall. (b) Improperly used also for the have; -- as in the phrases, a church with three aisles , the middle aisle . (c) Also (perhaps from confusion with alley ), a passage into which the pews of a church open.
Aisled Aisled adjective Furnished with an aisle or aisles.
Aisless Ais"less adjective Without an aisle.
Ait Ait noun [ Anglo-Saxon ..., ..., perhaps dim. of
īeg ,
īg , island. See
Eyot .]
An islet, or little isle, in a river or lake; an eyot. The ait where the osiers grew.
R. Hodges (1649).
Among green aits and meadows.
Dickens.
Ait Ait noun Oat. [ Scot.]
Burns.
Aitch Aitch noun The letter h or H.
Aitchbone Aitch"bone` noun [ For
nachebone . For loss of
n , confer
Adder . See
Natch .]
The bone of the rump; also, the cut of beef surrounding this bone. [ Spelt also
edgebone .]
Aitiology Ai`ti·ol"o·gy noun See Ætiology .
Ajar A·jar" adverb [ Middle English
on char ajar, on the turn; Anglo-Saxon
cerr ,
cyrr , turn, akin to German
kehren to turn, and to Dutch
akerre . See
Char .]
Slightly turned or opened; as, the door was standing ajar .
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