Definitions for: Air

[n] travel via aircraft; "air travel involves too much waiting in airports"; "if you've time to spare go by air"
[n] a distinctive but intangible quality surrounding a person or thing; "an air of mystery"; "the house had a neglected air"; "an atmosphere of defeat pervaded the candidate's headquarters"; "the place had an aura of romance"
[n] medium for radio and television broadcasting; "the program was on the air from 9 til midnight"; "the president used the airwaves to take his message to the people"
[n] a succession of notes forming a distinctive sequence; "she was humming an air from Beethoven"
[n] the region above the ground; "her hand stopped in mid air"; "he threw the ball into the air"
[n] a slight wind (usually refreshing); "the breeze was cooled by the lake"; "as he waited he could feel the air on his neck"
[n] a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; "air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need some fresh air"
[n] (archaic) once thought to be one of four elements composing the universe (Empedocles)
[v] expose to cool or cold air so as to cool or freshen; "air the old winter clothes"; "air out the smoke-filled rooms"
[v] expose to warm or heated air, so as to dry; "Air linen"
[v] make public; "She aired her opinions on welfare"
[v] broadcast over the airwaves, as in radio or television; "We cannot air this X-rated song"
[v] be broadcast; "This show will air Saturdays at 2 P.M."
[v] expose to fresh air, as of old clothing; "aerate your old sneakers"

Webster (1913) Definition: Air ([^a]r), n. [OE. air, eir, F. air, L. a["e]r, fr. Gr.
'ah`r, air, mist, for 'a[digamma]hr, fr. root 'a[digamma] to
blow, breathe, probably akin to E. wind. In sense 10 the
French has taking a meaning fr. It. aria atmosphere, air, fr.
the same Latin word; and in senses 11, 12, 13 the French
meaning is either fr. L. aria, or due to confusion with F.
aire, in an older sense of origin, descent. Cf. A["e]ry,
Debonair, Malaria, Wind.]
1. The fluid which we breathe, and which surrounds the earth;
the atmosphere. It is invisible, inodorous, insipid,
transparent, compressible, elastic, and ponderable.

Note: By the ancient philosophers, air was regarded as an
element; but modern science has shown that it is
essentially a mixture of oxygen and nitrogen, with a
small amount of carbon dioxide, the average proportions
being, by volume: oxygen, 20.96 per cent.; nitrogen,
79.00 per cent.; carbon dioxide, 0.04 per cent. These
proportions are subject to a very slight variability.
Air also always contains some vapor of water.

2. Symbolically: Something unsubstantial, light, or volatile.
``Charm ache with air.'' --Shak.

He was still all air and fire. [Air and fire being
the finer and quicker elements as opposed to earth and
water.] --Macaulay

3. A particular state of the atmosphere, as respects heat,
cold, moisture, etc., or as affecting the sensations; as,
a smoky air, a damp air, the morning air, etc.

4. Any a["e]riform body; a gas; as, oxygen was formerly
called vital air. [Obs.]

5. Air in motion; a light breeze; a gentle wind.

Let vernal airs through trembling osiers play.

6. Odoriferous or contaminated air.

7. That which surrounds and influences.

The keen, the wholesome air of poverty.

8. Utterance abroad; publicity; vent.

You gave it air before me. --Dryden.

9. Intelligence; information. [Obs.] --Bacon.

10. (Mus.)
(a) A musical idea, or motive, rhythmically developed in
consecutive single tones, so as to form a symmetrical
and balanced whole, which may be sung by a single
voice to the stanzas of a hymn or song, or even to
plain prose, or played upon an instrument; a melody;
a tune; an aria.
(b) In harmonized chorals, psalmody, part songs, etc.,
the part which bears the tune or melody -- in modern
harmony usually the upper part -- is sometimes called
the air.

11. The peculiar look, appearance, and bearing of a person;
mien; demeanor; as, the air of a youth; a heavy air; a
lofty air. ``His very air.'' --Shak.

12. Peculiar appearance; apparent character; semblance;
manner; style.

It was communicated with the air of a secret.

12. pl. An artificial or affected manner; show of pride or
vanity; haughtiness; as, it is said of a person, he puts
on airs. --Thackeray.

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 spring, a spring in which the elasticity of air is

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
(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 ([^a]r), v. t. [imp. & p. p. Aired ([^a]rd); p. pr.
& vb. n. Airing.] [See Air, n., and cf. A[eum]rate.]
1. To expose to the air for the purpose of cooling,
refreshing, or purifying; to ventilate; as, to air a room.

It were good wisdom . . . that the jail were aired.

Were you but riding forth to air yourself. --Shak.

2. To expose for the sake of public notice; to display
ostentatiously; as, to air one's opinion.

Airing a snowy hand and signet gem. --Tennyson.

3. To expose to heat, for the purpose of expelling dampness,
or of warming; as, to air linen; to air liquors.

Synonyms: aerate, air out, air out, air travel, airwave, atmosphere, aura, aviation, bare, breeze, gentle wind, line, melodic line, melodic phrase, melody, publicise, publicize, strain, tune, vent, ventilate, zephyr

See Also: air, Ar, argon, atomic number 10, atomic number 18, atomic number 36, atomic number 54, atomic number 7, atomic number 8, be on, beam, breath, breath, bring out, broadcast, bulletin, circularise, circularize, circulate, diffuse, disperse, disseminate, distribute, dry, dry out, element, expose, fanfare, flight, flourish, flying, fresh breeze, freshen, gas, gentle breeze, get on, glissando, idea, interrogate, issue, Kr, krypton, leitmotif, leitmotiv, light air, light breeze, liquid air, medium, melodic theme, moderate breeze, music, musical phrase, musical theme, mystique, N, Ne, neon, nitrogen, note, O, oxygen, part, part, pass around, phrase, propagate, publish, put out, quality, rebroadcast, refresh, region, release, rerun, roulade, satellite, sea breeze, send, signature, signature tune, sportscast, spread, strong breeze, telecast, televise, tell, theme, theme song, transmit, travel, traveling, travelling, vibrations, voice, wind, wind, Xe, xenon

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