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A pair of bellowsBellows Bel"lows, n. sing. & pl. [OE. bely, below, belly,
bellows, AS. b[ae]lg, b[ae]lig, bag, bellows, belly. Bellows
is prop. a pl. and the orig. sense is bag. See Belly.]
An instrument, utensil, or machine, which, by alternate
expansion and contraction, or by rise and fall of the top,
draws in air through a valve and expels it through a tube for
various purposes, as blowing fires, ventilating mines, or
filling the pipes of an organ with wind.
Bellows camera, in photography, a form of camera, which can
be drawn out like an accordion or bellows.
Hydrostatic bellows. See Hydrostatic.
A pair of bellows, the ordinary household instrument for
blowing fires, consisting of two nearly heart-shaped
boards with handles, connected by leather, and having a
valve and tube. AffairAffair Af*fair" ([a^]f*f[^a]r"), n. [OE. afere, affere, OF.
afaire, F. affaire, fr. a faire to do; L.. ad + facere to do.
See Fact, and cf. Ado.]
1. That which is done or is to be done; matter; concern; as,
a difficult affair to manage; business of any kind,
commercial, professional, or public; -- often in the
plural. ``At the head of affairs.' --Junius. ``A talent
for affairs.' --Prescott.
2. Any proceeding or action which it is wished to refer to or
characterize vaguely; as, an affair of honor, i. e., a
duel; an affair of love, i. e., an intrigue.
3. (Mil.) An action or engagement not of sufficient magnitude
to be called a battle.
4. Action; endeavor. [Obs.]
And with his best affair Obeyed the pleasure of the
Sun. --Chapman.
5. A material object (vaguely designated).
A certain affair of fine red cloth much worn and
faded. --Hawthorne. Air balloon 14. (Paint.)
(a) The representation or reproduction of the effect of
the atmospheric medium through which every object in
nature is viewed. --New Am. Cyc.
(b) Carriage; attitude; action; movement; as, the head of
that portrait has a good air. --Fairholt.
15. (Man.) The artificial motion or carriage of a horse.
Note: Air is much used adjectively or as the first part of a
compound term. In most cases it might be written
indifferently, as a separate limiting word, or as the
first element of the compound term, with or without the
hyphen; as, air bladder, air-bladder, or airbladder;
air cell, air-cell, or aircell; air-pump, or airpump.
Air balloon. See Balloon.
Air bath.
(a) An apparatus for the application of air to the body.
(b) An arrangement for drying substances in air of any
desired temperature.
Air castle. See Castle in the air, under Castle.
Air compressor, a machine for compressing air to be used as
a motive power.
Air crossing, a passage for air in a mine.
Air cushion, an air-tight cushion which can be inflated;
also, a device for arresting motion without shock by
confined air.
Air fountain, a contrivance for producing a jet of water by
the force of compressed air.
Air furnace, a furnace which depends on a natural draft and
not on blast.
Air line, a straight line; a bee line. Hence
Air-line, adj.; as, air-line road.
Air lock (Hydr. Engin.), an intermediate chamber between
the outer air and the compressed-air chamber of a
pneumatic caisson. --Knight.
Air port (Nav.), a scuttle or porthole in a ship to admit
air.
Air spring, a spring in which the elasticity of air is
utilized.
Air thermometer, a form of thermometer in which the
contraction and expansion of air is made to measure
changes of temperature.
Air threads, gossamer.
Air trap, a contrivance for shutting off foul air or gas
from drains, sewers, etc.; a stench trap.
Air trunk, a pipe or shaft for conducting foul or heated
air from a room.
Air valve, a valve to regulate the admission or egress of
air; esp. a valve which opens inwardly in a steam boiler
and allows air to enter.
Air way, a passage for a current of air; as the air way of
an air pump; an air way in a mine.
In the air.
(a) Prevalent without traceable origin or authority, as
rumors.
(b) Not in a fixed or stable position; unsettled.
(c) (Mil.) Unsupported and liable to be turned or taken
in flank; as, the army had its wing in the air.
To take air, to be divulged; to be made public.
To take the air, to go abroad; to walk or ride out. air bathVapor Va"por, n. [OE. vapour, OF. vapour, vapor, vapeur, F.
vapeur, L. vapor; probably for cvapor, and akin to Gr. ?
smoke, ? to breathe forth, Lith. kvepti to breathe, smell,
Russ. kopote fine soot. Cf. Vapid.] [Written also
vapour.]
1. (Physics) Any substance in the gaseous, or a["e]riform,
state, the condition of which is ordinarily that of a
liquid or solid.
Note: The term vapor is sometimes used in a more extended
sense, as identical with gas; and the difference
between the two is not so much one of kind as of
degree, the latter being applied to all permanently
elastic fluids except atmospheric air, the former to
those elastic fluids which lose that condition at
ordinary temperatures. The atmosphere contains more or
less vapor of water, a portion of which, on a reduction
of temperature, becomes condensed into liquid water in
the form of rain or dew. The vapor of water produced by
boiling, especially in its economic relations, is
called steam.
Vapor is any substance in the gaseous condition
at the maximum of density consistent with that
condition. This is the strict and proper meaning
of the word vapor. --Nichol.
2. In a loose and popular sense, any visible diffused
substance floating in the atmosphere and impairing its
transparency, as smoke, fog, etc.
The vapour which that fro the earth glood [glided].
--Chaucer.
Fire and hail; snow and vapors; stormy wind
fulfilling his word. --Ps. cxlviii.
8.
3. Wind; flatulence. [Obs.] --Bacon.
4. Something unsubstantial, fleeting, or transitory; unreal
fancy; vain imagination; idle talk; boasting.
For what is your life? It is even a vapor, that
appeareth for a little time, and then vanisheth
away. --James iv.
14.
5. pl. An old name for hypochondria, or melancholy; the
blues. ``A fit of vapors.' --Pope.
6. (Pharm.) A medicinal agent designed for administration in
the form of inhaled vapor. --Brit. Pharm.
Vapor bath.
(a) A bath in vapor; the application of vapor to the body,
or part of it, in a close place; also, the place
itself.
(b) (Chem.) A small metallic drying oven, usually of
copper, for drying and heating filter papers,
precipitates, etc.; -- called also air bath. A
modified form is provided with a jacket in the outside
partition for holding water, or other volatile liquid,
by which the temperature may be limited exactly to the
required degree.
Vapor burner, a burner for burning a vaporized hydrocarbon.
Vapor density (Chem.), the relative weight of gases and
vapors as compared with some specific standard, usually
hydrogen, but sometimes air. The vapor density of gases
and vaporizable substances as compared with hydrogen, when
multiplied by two, or when compared with air and
multiplied by 28.8, gives the molecular weight.
Vapor engine, an engine worked by the expansive force of a
vapor, esp. a vapor other than steam. Air bath 14. (Paint.)
(a) The representation or reproduction of the effect of
the atmospheric medium through which every object in
nature is viewed. --New Am. Cyc.
(b) Carriage; attitude; action; movement; as, the head of
that portrait has a good air. --Fairholt.
15. (Man.) The artificial motion or carriage of a horse.
Note: Air is much used adjectively or as the first part of a
compound term. In most cases it might be written
indifferently, as a separate limiting word, or as the
first element of the compound term, with or without the
hyphen; as, air bladder, air-bladder, or airbladder;
air cell, air-cell, or aircell; air-pump, or airpump.
Air balloon. See Balloon.
Air bath.
(a) An apparatus for the application of air to the body.
(b) An arrangement for drying substances in air of any
desired temperature.
Air castle. See Castle in the air, under Castle.
Air compressor, a machine for compressing air to be used as
a motive power.
Air crossing, a passage for air in a mine.
Air cushion, an air-tight cushion which can be inflated;
also, a device for arresting motion without shock by
confined air.
Air fountain, a contrivance for producing a jet of water by
the force of compressed air.
Air furnace, a furnace which depends on a natural draft and
not on blast.
Air line, a straight line; a bee line. Hence
Air-line, adj.; as, air-line road.
Air lock (Hydr. Engin.), an intermediate chamber between
the outer air and the compressed-air chamber of a
pneumatic caisson. --Knight.
Air port (Nav.), a scuttle or porthole in a ship to admit
air.
Air spring, a spring in which the elasticity of air is
utilized.
Air thermometer, a form of thermometer in which the
contraction and expansion of air is made to measure
changes of temperature.
Air threads, gossamer.
Air trap, a contrivance for shutting off foul air or gas
from drains, sewers, etc.; a stench trap.
Air trunk, a pipe or shaft for conducting foul or heated
air from a room.
Air valve, a valve to regulate the admission or egress of
air; esp. a valve which opens inwardly in a steam boiler
and allows air to enter.
Air way, a passage for a current of air; as the air way of
an air pump; an air way in a mine.
In the air.
(a) Prevalent without traceable origin or authority, as
rumors.
(b) Not in a fixed or stable position; unsettled.
(c) (Mil.) Unsupported and liable to be turned or taken
in flank; as, the army had its wing in the air.
To take air, to be divulged; to be made public.
To take the air, to go abroad; to walk or ride out. Air bed
Air bed Air" bed`
A sack or matters inflated with air, and used as a bed.
Air bladder
Air bladder Air" blad`der
1. (Anat.) An air sac, sometimes double or variously lobed,
in the visceral cavity of many fishes. It originates in
the same way as the lungs of air-breathing vertebrates,
and in the adult may retain a tubular connection with the
pharynx or esophagus.
2. A sac or bladder full of air in an animal or plant; also
an air hole in a casting.
Air brake
Air brake Air" brake` (Mach.)
A railway brake operated by condensed air. --Knight.
Air brush
Air brush Air brush
A kind of atomizer for applying liquid coloring matter in a
spray by compressed air.
Air castle 14. (Paint.)
(a) The representation or reproduction of the effect of
the atmospheric medium through which every object in
nature is viewed. --New Am. Cyc.
(b) Carriage; attitude; action; movement; as, the head of
that portrait has a good air. --Fairholt.
15. (Man.) The artificial motion or carriage of a horse.
Note: Air is much used adjectively or as the first part of a
compound term. In most cases it might be written
indifferently, as a separate limiting word, or as the
first element of the compound term, with or without the
hyphen; as, air bladder, air-bladder, or airbladder;
air cell, air-cell, or aircell; air-pump, or airpump.
Air balloon. See Balloon.
Air bath.
(a) An apparatus for the application of air to the body.
(b) An arrangement for drying substances in air of any
desired temperature.
Air castle. See Castle in the air, under Castle.
Air compressor, a machine for compressing air to be used as
a motive power.
Air crossing, a passage for air in a mine.
Air cushion, an air-tight cushion which can be inflated;
also, a device for arresting motion without shock by
confined air.
Air fountain, a contrivance for producing a jet of water by
the force of compressed air.
Air furnace, a furnace which depends on a natural draft and
not on blast.
Air line, a straight line; a bee line. Hence
Air-line, adj.; as, air-line road.
Air lock (Hydr. Engin.), an intermediate chamber between
the outer air and the compressed-air chamber of a
pneumatic caisson. --Knight.
Air port (Nav.), a scuttle or porthole in a ship to admit
air.
Air spring, a spring in which the elasticity of air is
utilized.
Air thermometer, a form of thermometer in which the
contraction and expansion of air is made to measure
changes of temperature.
Air threads, gossamer.
Air trap, a contrivance for shutting off foul air or gas
from drains, sewers, etc.; a stench trap.
Air trunk, a pipe or shaft for conducting foul or heated
air from a room.
Air valve, a valve to regulate the admission or egress of
air; esp. a valve which opens inwardly in a steam boiler
and allows air to enter.
Air way, a passage for a current of air; as the air way of
an air pump; an air way in a mine.
In the air.
(a) Prevalent without traceable origin or authority, as
rumors.
(b) Not in a fixed or stable position; unsettled.
(c) (Mil.) Unsupported and liable to be turned or taken
in flank; as, the army had its wing in the air.
To take air, to be divulged; to be made public.
To take the air, to go abroad; to walk or ride out. Air cell
Air cell Air" cell`
1. (Bot.) A cavity in the cellular tissue of plants,
containing air only.
2. (Anat.) A receptacle of air in various parts of the
system; as, a cell or minute cavity in the walls of the
air tubes of the lungs; the air sac of birds; a dilatation
of the air vessels in insects.
Air cellCell Cell, n. [OF. celle, fr. L. cella; akin to celare to
hide, and E. hell, helm, conceal. Cf. Hall.]
1. A very small and close apartment, as in a prison or in a
monastery or convent; the hut of a hermit.
The heroic confessor in his cell. --Macaulay.
2. A small religious house attached to a monastery or
convent. ``Cells or dependent priories.' --Milman.
3. Any small cavity, or hollow place.
4. (Arch.)
(a) The space between the ribs of a vaulted roof.
(b) Same as Cella.
5. (Elec.) A jar of vessel, or a division of a compound
vessel, for holding the exciting fluid of a battery.
6. (Biol.) One of the minute elementary structures, of which
the greater part of the various tissues and organs of
animals and plants are composed.
Note: All cells have their origin in the primary cell from
which the organism was developed. In the lowest animal
and vegetable forms, one single cell constitutes the
complete individual, such being called unicelluter
orgamisms. A typical cell is composed of a semifluid
mass of protoplasm, more or less granular, generally
containing in its center a nucleus which in turn
frequently contains one or more nucleoli, the whole
being surrounded by a thin membrane, the cell wall. In
some cells, as in those of blood, in the am[oe]ba, and
in embryonic cells (both vegetable and animal), there
is no restricting cell wall, while in some of the
unicelluliar organisms the nucleus is wholly wanting.
See Illust. of Bipolar.
Air cell. See Air cell.
Cell development (called also cell genesis, cell
formation, and cytogenesis), the multiplication, of
cells by a process of reproduction under the following
common forms; segmentation or fission, gemmation or
budding, karyokinesis, and endogenous multiplication. See
Segmentation, Gemmation, etc.
Cell theory. (Biol.) See Cellular theory, under
Cellular. Air chamber
Air chamber Air" cham`ber
1. A chamber or cavity filled with air, in an animal or
plant.
2. A cavity containing air to act as a spring for equalizing
the flow of a liquid in a pump or other hydraulic machine.
Air cock
Air cock Air" cock`
A faucet to allow escape of air.
Air compressor 14. (Paint.)
(a) The representation or reproduction of the effect of
the atmospheric medium through which every object in
nature is viewed. --New Am. Cyc.
(b) Carriage; attitude; action; movement; as, the head of
that portrait has a good air. --Fairholt.
15. (Man.) The artificial motion or carriage of a horse.
Note: Air is much used adjectively or as the first part of a
compound term. In most cases it might be written
indifferently, as a separate limiting word, or as the
first element of the compound term, with or without the
hyphen; as, air bladder, air-bladder, or airbladder;
air cell, air-cell, or aircell; air-pump, or airpump.
Air balloon. See Balloon.
Air bath.
(a) An apparatus for the application of air to the body.
(b) An arrangement for drying substances in air of any
desired temperature.
Air castle. See Castle in the air, under Castle.
Air compressor, a machine for compressing air to be used as
a motive power.
Air crossing, a passage for air in a mine.
Air cushion, an air-tight cushion which can be inflated;
also, a device for arresting motion without shock by
confined air.
Air fountain, a contrivance for producing a jet of water by
the force of compressed air.
Air furnace, a furnace which depends on a natural draft and
not on blast.
Air line, a straight line; a bee line. Hence
Air-line, adj.; as, air-line road.
Air lock (Hydr. Engin.), an intermediate chamber between
the outer air and the compressed-air chamber of a
pneumatic caisson. --Knight.
Air port (Nav.), a scuttle or porthole in a ship to admit
air.
Air spring, a spring in which the elasticity of air is
utilized.
Air thermometer, a form of thermometer in which the
contraction and expansion of air is made to measure
changes of temperature.
Air threads, gossamer.
Air trap, a contrivance for shutting off foul air or gas
from drains, sewers, etc.; a stench trap.
Air trunk, a pipe or shaft for conducting foul or heated
air from a room.
Air valve, a valve to regulate the admission or egress of
air; esp. a valve which opens inwardly in a steam boiler
and allows air to enter.
Air way, a passage for a current of air; as the air way of
an air pump; an air way in a mine.
In the air.
(a) Prevalent without traceable origin or authority, as
rumors.
(b) Not in a fixed or stable position; unsettled.
(c) (Mil.) Unsupported and liable to be turned or taken
in flank; as, the army had its wing in the air.
To take air, to be divulged; to be made public.
To take the air, to go abroad; to walk or ride out. air cooledInternal-combustion engine Internal-combustion engine) in
which the heat or pressure energy necessary to produce motion
is developed in the engine cylinder, as by the explosion of a
gas, and not in a separate chamber, as in a steam-engine
boiler. The gas used may be a fixed gas, or one derived from
alcohol, ether, gasoline (petrol), naphtha, oil (petroleum),
etc. There are three main classes: (1) gas engines proper,
using fixed gases, as coal, blast-furnace, or producer gas;
(2) engines using the vapor of a volatile fluid, as the
typical gasoline (petrol) engine; (3) oil engines, using
either an atomized spray or the vapor (produced by heat) of a
comparatively heavy oil, as petroleum or kerosene. In all of
these the gas is mixed with a definite amount of air, the
charge is composed in the cylinder and is then exploded
either by a flame of gas (
flame ignition -- now little used), by a hot tube (
tube ignition) or the like, by an electric spark (
electric ignition, the usual method is gasoline engines, or
by the heat of compression, as in the Diesel engine. Gas
and oil engines are chiefly of the stationary type.
Gasoline engines are largely used for automobile vehicles,
boats, etc. Most internal-combustion engines use the Otto
(four-stroke) cycle, though many use the two-stroke cycle.
They are almost universally trunk engines and
single-acting. Because of the intense heat produced by the
frequent explosions, the cylinders must be cooled by a
water jacket (
water-cooled) or by air currents (
air cooled) to give the maximum thermodynamic efficiency
and to avoid excessive friction or seizing. Interne
In*terne", n. [F.] (F. pron. [a^]N`t[^a]rn") (Med.)
A resident physician in a hospital; a house physician. Air coolingAir 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. Cf. Water cooling. -- Air"-cooled`, a. Air crossing 14. (Paint.)
(a) The representation or reproduction of the effect of
the atmospheric medium through which every object in
nature is viewed. --New Am. Cyc.
(b) Carriage; attitude; action; movement; as, the head of
that portrait has a good air. --Fairholt.
15. (Man.) The artificial motion or carriage of a horse.
Note: Air is much used adjectively or as the first part of a
compound term. In most cases it might be written
indifferently, as a separate limiting word, or as the
first element of the compound term, with or without the
hyphen; as, air bladder, air-bladder, or airbladder;
air cell, air-cell, or aircell; air-pump, or airpump.
Air balloon. See Balloon.
Air bath.
(a) An apparatus for the application of air to the body.
(b) An arrangement for drying substances in air of any
desired temperature.
Air castle. See Castle in the air, under Castle.
Air compressor, a machine for compressing air to be used as
a motive power.
Air crossing, a passage for air in a mine.
Air cushion, an air-tight cushion which can be inflated;
also, a device for arresting motion without shock by
confined air.
Air fountain, a contrivance for producing a jet of water by
the force of compressed air.
Air furnace, a furnace which depends on a natural draft and
not on blast.
Air line, a straight line; a bee line. Hence
Air-line, adj.; as, air-line road.
Air lock (Hydr. Engin.), an intermediate chamber between
the outer air and the compressed-air chamber of a
pneumatic caisson. --Knight.
Air port (Nav.), a scuttle or porthole in a ship to admit
air.
Air spring, a spring in which the elasticity of air is
utilized.
Air thermometer, a form of thermometer in which the
contraction and expansion of air is made to measure
changes of temperature.
Air threads, gossamer.
Air trap, a contrivance for shutting off foul air or gas
from drains, sewers, etc.; a stench trap.
Air trunk, a pipe or shaft for conducting foul or heated
air from a room.
Air valve, a valve to regulate the admission or egress of
air; esp. a valve which opens inwardly in a steam boiler
and allows air to enter.
Air way, a passage for a current of air; as the air way of
an air pump; an air way in a mine.
In the air.
(a) Prevalent without traceable origin or authority, as
rumors.
(b) Not in a fixed or stable position; unsettled.
(c) (Mil.) Unsupported and liable to be turned or taken
in flank; as, the army had its wing in the air.
To take air, to be divulged; to be made public.
To take the air, to go abroad; to walk or ride out. Air cushion 14. (Paint.)
(a) The representation or reproduction of the effect of
the atmospheric medium through which every object in
nature is viewed. --New Am. Cyc.
(b) Carriage; attitude; action; movement; as, the head of
that portrait has a good air. --Fairholt.
15. (Man.) The artificial motion or carriage of a horse.
Note: Air is much used adjectively or as the first part of a
compound term. In most cases it might be written
indifferently, as a separate limiting word, or as the
first element of the compound term, with or without the
hyphen; as, air bladder, air-bladder, or airbladder;
air cell, air-cell, or aircell; air-pump, or airpump.
Air balloon. See Balloon.
Air bath.
(a) An apparatus for the application of air to the body.
(b) An arrangement for drying substances in air of any
desired temperature.
Air castle. See Castle in the air, under Castle.
Air compressor, a machine for compressing air to be used as
a motive power.
Air crossing, a passage for air in a mine.
Air cushion, an air-tight cushion which can be inflated;
also, a device for arresting motion without shock by
confined air.
Air fountain, a contrivance for producing a jet of water by
the force of compressed air.
Air furnace, a furnace which depends on a natural draft and
not on blast.
Air line, a straight line; a bee line. Hence
Air-line, adj.; as, air-line road.
Air lock (Hydr. Engin.), an intermediate chamber between
the outer air and the compressed-air chamber of a
pneumatic caisson. --Knight.
Air port (Nav.), a scuttle or porthole in a ship to admit
air.
Air spring, a spring in which the elasticity of air is
utilized.
Air thermometer, a form of thermometer in which the
contraction and expansion of air is made to measure
changes of temperature.
Air threads, gossamer.
Air trap, a contrivance for shutting off foul air or gas
from drains, sewers, etc.; a stench trap.
Air trunk, a pipe or shaft for conducting foul or heated
air from a room.
Air valve, a valve to regulate the admission or egress of
air; esp. a valve which opens inwardly in a steam boiler
and allows air to enter.
Air way, a passage for a current of air; as the air way of
an air pump; an air way in a mine.
In the air.
(a) Prevalent without traceable origin or authority, as
rumors.
(b) Not in a fixed or stable position; unsettled.
(c) (Mil.) Unsupported and liable to be turned or taken
in flank; as, the army had its wing in the air.
To take air, to be divulged; to be made public.
To take the air, to go abroad; to walk or ride out. Air drill
Air drill Air" drill`
A drill driven by the elastic pressure of condensed air; a
pneumatic drill. --Knight.
Air engine
Air engine Air" engine`
An engine driven by heated or by compressed air. --Knight.
Air fountain 14. (Paint.)
(a) The representation or reproduction of the effect of
the atmospheric medium through which every object in
nature is viewed. --New Am. Cyc.
(b) Carriage; attitude; action; movement; as, the head of
that portrait has a good air. --Fairholt.
15. (Man.) The artificial motion or carriage of a horse.
Note: Air is much used adjectively or as the first part of a
compound term. In most cases it might be written
indifferently, as a separate limiting word, or as the
first element of the compound term, with or without the
hyphen; as, air bladder, air-bladder, or airbladder;
air cell, air-cell, or aircell; air-pump, or airpump.
Air balloon. See Balloon.
Air bath.
(a) An apparatus for the application of air to the body.
(b) An arrangement for drying substances in air of any
desired temperature.
Air castle. See Castle in the air, under Castle.
Air compressor, a machine for compressing air to be used as
a motive power.
Air crossing, a passage for air in a mine.
Air cushion, an air-tight cushion which can be inflated;
also, a device for arresting motion without shock by
confined air.
Air fountain, a contrivance for producing a jet of water by
the force of compressed air.
Air furnace, a furnace which depends on a natural draft and
not on blast.
Air line, a straight line; a bee line. Hence
Air-line, adj.; as, air-line road.
Air lock (Hydr. Engin.), an intermediate chamber between
the outer air and the compressed-air chamber of a
pneumatic caisson. --Knight.
Air port (Nav.), a scuttle or porthole in a ship to admit
air.
Air spring, a spring in which the elasticity of air is
utilized.
Air thermometer, a form of thermometer in which the
contraction and expansion of air is made to measure
changes of temperature.
Air threads, gossamer.
Air trap, a contrivance for shutting off foul air or gas
from drains, sewers, etc.; a stench trap.
Air trunk, a pipe or shaft for conducting foul or heated
air from a room.
Air valve, a valve to regulate the admission or egress of
air; esp. a valve which opens inwardly in a steam boiler
and allows air to enter.
Air way, a passage for a current of air; as the air way of
an air pump; an air way in a mine.
In the air.
(a) Prevalent without traceable origin or authority, as
rumors.
(b) Not in a fixed or stable position; unsettled.
(c) (Mil.) Unsupported and liable to be turned or taken
in flank; as, the army had its wing in the air.
To take air, to be divulged; to be made public.
To take the air, to go abroad; to walk or ride out. Air fountainFountain Foun"tain (foun"t[i^]n), n. [F. fontaine, LL.
fontana, fr. L. fons, fontis. See 2d Fount.]
1. A spring of water issuing from the earth.
2. An artificially produced jet or stream of water; also, the
structure or works in which such a jet or stream rises or
flows; a basin built and constantly supplied with pure
water for drinking and other useful purposes, or for
ornament.
3. A reservoir or chamber to contain a liquid which can be
conducted or drawn off as needed for use; as, the ink
fountain in a printing press, etc.
4. The source from which anything proceeds, or from which
anything is supplied continuously; origin; source.
Judea, the fountain of the gospel. --Fuller.
Author of all being, Fountain of light, thyself
invisible. --Milton.
Air fountain. See under Air.
Fountain heead, primary source; original; first principle.
--Young.
Fountain inkstand, an inkstand having a continual supply of
ink, as from elevated reservoir.
Fountain lamp, a lamp fed with oil from an elevated
reservoir.
Fountain pen, a pen with a reservoir in the handle which
furnishes a supply of ink.
Fountain pump.
(a) A structure for a fountain, having the form of a pump.
(b) A portable garden pump which throws a jet, for
watering plants, etc.
Fountain shell (Zo["o]l.), the large West Indian conch
shell (Strombus gigas).
Fountain of youth, a mythical fountain whose waters were
fabled to have the property of renewing youth. Air furnace 14. (Paint.)
(a) The representation or reproduction of the effect of
the atmospheric medium through which every object in
nature is viewed. --New Am. Cyc.
(b) Carriage; attitude; action; movement; as, the head of
that portrait has a good air. --Fairholt.
15. (Man.) The artificial motion or carriage of a horse.
Note: Air is much used adjectively or as the first part of a
compound term. In most cases it might be written
indifferently, as a separate limiting word, or as the
first element of the compound term, with or without the
hyphen; as, air bladder, air-bladder, or airbladder;
air cell, air-cell, or aircell; air-pump, or airpump.
Air balloon. See Balloon.
Air bath.
(a) An apparatus for the application of air to the body.
(b) An arrangement for drying substances in air of any
desired temperature.
Air castle. See Castle in the air, under Castle.
Air compressor, a machine for compressing air to be used as
a motive power.
Air crossing, a passage for air in a mine.
Air cushion, an air-tight cushion which can be inflated;
also, a device for arresting motion without shock by
confined air.
Air fountain, a contrivance for producing a jet of water by
the force of compressed air.
Air furnace, a furnace which depends on a natural draft and
not on blast.
Air line, a straight line; a bee line. Hence
Air-line, adj.; as, air-line road.
Air lock (Hydr. Engin.), an intermediate chamber between
the outer air and the compressed-air chamber of a
pneumatic caisson. --Knight.
Air port (Nav.), a scuttle or porthole in a ship to admit
air.
Air spring, a spring in which the elasticity of air is
utilized.
Air thermometer, a form of thermometer in which the
contraction and expansion of air is made to measure
changes of temperature.
Air threads, gossamer.
Air trap, a contrivance for shutting off foul air or gas
from drains, sewers, etc.; a stench trap.
Air trunk, a pipe or shaft for conducting foul or heated
air from a room.
Air valve, a valve to regulate the admission or egress of
air; esp. a valve which opens inwardly in a steam boiler
and allows air to enter.
Air way, a passage for a current of air; as the air way of
an air pump; an air way in a mine.
In the air.
(a) Prevalent without traceable origin or authority, as
rumors.
(b) Not in a fixed or stable position; unsettled.
(c) (Mil.) Unsupported and liable to be turned or taken
in flank; as, the army had its wing in the air.
To take air, to be divulged; to be made public.
To take the air, to go abroad; to walk or ride out. Air gap
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 gasAir gas Air" gas`
See under Gas. Air gas Note: Gas is often used adjectively or in combination; as,
gas fitter or gasfitter; gas meter or gas-meter, etc.
Air gas (Chem.), a kind of gas made by forcing air through
some volatile hydrocarbon, as the lighter petroleums. The
air is so saturated with combustible vapor as to be a
convenient illuminating and heating agent.
Gas battery (Elec.), a form of voltaic battery, in which
gases, especially hydrogen and oxygen, are the active
agents.
Gas carbon, Gas coke, etc. See under Carbon, Coke,
etc.
Gas coal, a bituminous or hydrogenous coal yielding a high
percentage of volatile matters, and therefore available
for the manufacture of illuminating gas. --R. W. Raymond.
Gas engine, an engine in which the motion of the piston is
produced by the combustion or sudden production or
expansion of gas; -- especially, an engine in which an
explosive mixture of gas and air is forced into the
working cylinder and ignited there by a gas flame or an
electric spark. Air gun
Air gun Air" gun` (g[u^]n`).
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 Air hole (A["e]ronautics)
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 hole
Air hole Air" hole` (h[=o]l`).
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.
Meaning of Air from wikipedia
- Look up
air in Wiktionary, the free dictionary.
Air is the name
given to the
atmosphere of Earth.
Air or
AIR may also
refer to:
Air (Maillol), a sculpture...
- The
atmosphere of
Earth is the
layer of gases,
known collectively as
air,
retained by Earth's
gravity that
surrounds the
planet and
forms its planetary...
- The
United States Air Force (USAF) is the
air service branch of the
United States Armed Forces, and is one of the
eight uniformed services of the United...
-
Air-to-
air can
refer to:
Air-to-
air combat Air-to-
air missile Air-to-
air photography Air-to-
air refueling Air-to-
air rocket Air-to-
air refrigeration Search...
- The
Royal Air Force (RAF) is the
air and
space force of the
United Kingdom,
British Overseas Territories and
Crown Dependencies. It was
formed towards...
-
Air pollution is the
contamination of
air due to the
presence of
substances called pollutants in the
atmosphere that are
harmful to the
health of humans...
-
Air India is the flag
carrier airline of India. It is
owned by
Air India Limited, a Tata
Group enterprise and
operates a
fleet of
Airbus and
Boeing aircraft...
- An
air-to-
air missile (AAM) is a
missile fired from an
aircraft for the
purpose of
destroying another aircraft. AAMs are
typically powered by one or more...
-
effectiveness of
hostile air action" (NATO's definition). It
includes surface based,
subsurface (submarine launched), and
air-based
weapon systems, ****ociated...
- The
Royal Canadian Air Force (RCAF; French:
Aviation royale canadienne, ARC) is the
air and
space force of Canada. Its role is to "provide the Canadian...
