air : Idioms & Phrases

• noun air defense by the use aircraft or missiles or artillery or electronic countermeasures
  

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• noun the time period during which military and civilian agencies are prepared for an enemy air attack
  
• noun the condition in which combat aircraft are airborne and ready for an operation
  
  • aircraft in the Mideast are on air alert
• noun the warning signal that begins a period of preparation for an enemy air attack
  

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• noun a military attache who is a commissioned or warrant officer in an air force
  

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• noun an attack by armed planes on a surface target
  air attack.
  

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• noun a safety restraint in an automobile; the bag inflates on collision and prevents the driver or passenger from being thrown forward
  

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• . See Balloon.

Webster 1913

• noun a base for military aircraft
  air base.
  

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• . (a) An apparatus for the application of air to the body. (b) An arrangement for drying substances in air of any desired temperature.

Webster 1913

Air" bed`

Definitions

1. A sack or matters inflated with air, and used as a bed.

Webster 1913

• noun an air-filled sac near the spinal column in many fishes that helps maintain buoyancy
  float; swim bladder.
  

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Air" blad`der

Definitions

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.

Webster 1913

Air" brake`

Definitions

1. (Mach.) A railway brake operated by condensed air. Knight.

Webster 1913

• noun a bubble of air
  

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• noun absentminded dreaming while awake
  revery; castle in Spain; air castle; daydream; daydreaming; reverie; oneirism.
  

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• . See Castle in the air, under Castle.

Webster 1913

• noun a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
  air cell; alveolus.
  

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Air" cell`

Definitions

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.

Webster 1913

Air" cham`ber

Definitions

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.

Webster 1913

• noun a filter that removes dust from the air that passes through it
  air cleaner.
  

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Air" cock`

Definitions

1. A faucet to allow escape of air.

Webster 1913

• noun a command that is the primary provider of air combat weapon systems to the United States Air Force; operates fighter, bomber, reconnaissance, battle-management, and rescue aircraft
  ACC.
  

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• noun a compressor that takes in air at atmospheric pressure and delivers it at a higher pressure
  

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• a machine for compressing air to be used as a motive power.

Webster 1913

• noun a system that keeps air cool and dry
  air conditioner.
  

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• noun a system that keeps air cool and dry
  air conditioner.
  

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• noun formerly the airborne division of the United States Army
  

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• noun the use of military aircraft to provide protection against attack by enemy aircraft during ground or naval operations
  

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• noun the crew of an aircraft
  aircrew.
  

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• a passage for air in a mine.

Webster 1913

• noun air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure
  air current; wind.
  
  • trees bent under the fierce winds
  • when there is no wind, row
  • the radioactivity was being swept upwards by the air current and out into the atmosphere

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• noun the trapped air that supports a hovercraft a short distance above the water or ground
  
• noun a mechanical device using confined air to absorb the shock of motion
  air cushion.
  
• noun a cushion usually made of rubber or plastic that can be inflated
  inflatable cushion.
  

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• an air-tight cushion which can be inflated; also, a device for arresting motion without shock by confined air.

Webster 1913

• noun defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness
  

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• noun a unit of the United States Air Force usually comprising two or more wings
  division.
  

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Air" drill`

Definitions

1. A drill driven by the elastic pressure of condensed air; a pneumatic drill. Knight.

Webster 1913

• noun a duct that provides ventilation (as in mines)
  air duct; airway.
  

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• noun obstruction of the circulatory system caused by an air bubble as, e.g., accidentally during surgery or hypodermic injection or as a complication from scuba diving
  gas embolism; aeroembolism.
  
• noun pain resulting from rapid change in pressure
  caisson disease; bends; gas embolism; aeroembolism; decompression sickness.
  

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Air" engine`

Definitions

1. An engine driven by heated or by compressed air. Knight.

Webster 1913

• noun a filter that removes dust from the air that passes through it
  air cleaner.
  

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• noun the flow of air
  air flow; airflow.
  
  • she adjusted the fan so that the airflow was directed right at her

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• noun the airborne branch of a country's armed forces
  airforce.
  
• noun the airforce of the United States of America; the agency that defends the United States through control and exploitation of air and space
  USAF; United States Air Force; U. S. Air Force; Air Force.
  

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• noun an academy for training air force officers
  

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• noun an agency focused on ensuring that the United States military attains information superiority; operates worldwide ground sites and an array of airborne reconnaissance and surveillance platforms
  AFISR; Air Force Intelligence Surveillance and Reconnaissance.
  

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• noun an agency focused on ensuring that the United States military attains information superiority; operates worldwide ground sites and an array of airborne reconnaissance and surveillance platforms
  AFISR; Air Force Intelligence Surveillance and Reconnaissance.
  

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• noun an officer in the airforce
  commander.
  

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• noun a United States Air Force defense laboratory responsible for discovering and developing and integrating fighting technologies for aerospace forces
  AFRL.
  

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• noun a command of the United States Air Force that is responsible for defending the United States through its space and intercontinental ballistic missile operations
  AFSPC.
  

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• a contrivance for producing a jet of water by the force of compressed air.

Webster 1913

• a furnace which depends on a natural draft and not on blast.

Webster 1913

• noun a gas made of carbon monoxide and hydrogen and nitrogen; made by passing air over hot coke
  producer gas.
  

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Air" gas`

Definitions

1. See under Gas.

Webster 1913

• noun a unit of the United States Air Force larger than a squadron and smaller than a wing
  

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• noun a gun that propels a projectile by compressed air
  airgun; air gun.
  

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Air" gun`

Definitions

1. 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. airhead

Webster 1913

• noun a hammer driven by compressed air
  pneumatic hammer; jackhammer.
  

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• noun a local region of low pressure or descending air that causes a plane to lose height suddenly
  pocket; air hole.
  
• noun a hole that allows the passage of air
  

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Air" hole`

Definitions

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.

Webster 1913

• noun a pneumatic horn
  
• noun air intake of a carburetor
  

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• noun a hose that carries air under pressure
  airline.
  

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• noun a woman steward on an airplane
  stewardess; hostess.
  

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• noun an inflatable life jacket
  Mae West.
  

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Air" jack`et

Definitions

1. A jacket having air-tight cells, or cavities which can be filled with air, to render persons buoyant in swimming.

Webster 1913

• noun a designated route followed by airplanes in flying from one airport to another
  skyway; airway; flight path.
  

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• noun a letter sent by air mail
  airmail letter; aerogram; aerogramme.
  

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Air" lev`el

Definitions

1. Spirit level. See Level.

Webster 1913

• a straight line; a bee line. Hence

Webster 1913

• noun a chamber that provides access to space where air is under pressure
  airlock.
  

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• (Hydr. Engin.), an intermediate chamber between the outer air and the compressed-air chamber of a pneumatic caisson. Knight.

Webster 1913

• noun mail that is sent by air transport
  

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• noun a person trained by the government in hijacking and terrorist tactics who (for security reasons) is a passenger aboard an airline flight
  sky marshal.
  

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• noun a large body of air with uniform characteristics horizontally
  

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• noun a mattress that can be stored flat and inflated for use
  

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• noun a United States Air Force decoration for meritorious achievement while participating in an aerial flight
  

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• noun a unit of length used in navigation; exactly 1,852 meters; historically based on the distance spanned by one minute of arc in latitude
  naut mi; mi; mile; nautical mile; international nautical mile; knot.
  

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• noun a civilian reserve component of the United States Air Force that provides prompt mobilization during war and assistance during national emergencies
  ANG.
  

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• verb expose to fresh air
  aerate; air.
  
  • aerate your old sneakers
• verb expose to cool or cold air so as to cool or freshen
  vent; ventilate; air.
  
  • air the old winter clothes
  • air out the smoke-filled rooms

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• noun a duct that provides ventilation (as in mines)
  air duct; airway.
  

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Air" pipe`

Definitions

1. A pipe for the passage of air; esp. a ventilating pipe.

Webster 1913

• noun plant that derives moisture and nutrients from the air and rain; usually grows on another plant but not parasitic on it
  aerophyte; epiphytic plant; epiphyte.
  

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Air" plant`

Definitions

1. (Bot.) 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.

Webster 1913

• noun a local region of low pressure or descending air that causes a plane to lose height suddenly
  pocket; air hole.
  

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Air" poise`

Etymology

Definitions

1. A measure the weight of air.

Webster 1913

• noun pollution of the atmosphere
  
  • air pollution reduced the visibility

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• (Nav.), a scuttle or porthole in a ship to admit air.

Webster 1913

• noun yam of tropical Africa and Asia cultivated for it large tubers
  Dioscorea bulbifera.
  

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• noun the aggregation of a country's military aircraft
  aviation.
  

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• noun the pressure exerted by the atmosphere
  pressure; atmospheric pressure.
  

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• noun a pump that moves air in or out of something
  vacuum pump.
  

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Air" pump`

Definitions

1. (Physics) A kind of pump for exhausting air from a vessel or closed space; also, a pump to condense air of force in 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.

Webster 1913

• noun an attack by armed planes on a surface target
  air attack.
  

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• noun reconnaissance either by visual observation from the air or through the use of airborne sensors
  

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• noun a gun that propels a projectile by compressed air
  airgun; air gun.
  

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• noun a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
  air cell; alveolus.
  
• noun any of the thin-walled extensions of the tracheae of insects
  
• noun any of the membranous air-filled extensions of the lungs of birds
  

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Air" sac`

Definitions

1. (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.

Webster 1913

• noun a shipboard radar that searches for aircraft
  

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• noun a shaft for ventilation
  air shaft.
  

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Air" shaft`

Definitions

1. A passage, usually vertical, for admitting fresh air into a mine or a tunnel.

Webster 1913

• adjective satellite experiencing motion sickness
  seasick; airsick; carsick.
  

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• noun motion sickness experienced while traveling by air (especially during turbulence)
  airsickness.
  

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• noun a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind
  windsock; wind sock; air sock; sock; wind sleeve; drogue; wind cone.
  

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• noun the space in the atmosphere immediately above the earth
  airspace.
  

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• noun a mechanical device using confined air to absorb the shock of motion
  air cushion.
  

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• a spring in which the elasticity of air is utilized.

Webster 1913

• noun a base for military aircraft
  air base.
  

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Air" stove`

Definitions

1. A stove for heating a current of air which is directed against its surface by means of pipes, and then distributed through a building.

Webster 1913

• noun a terminal that serves air travelers or air freight
  airport terminal.
  

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• noun thermometer that measures temperature by changes in the pressure of a gas kept at constant volume
  gas thermometer.
  

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• a form of thermometer in which the contraction and expansion of air is made to measure changes of temperature.

Webster 1913

• gossamer.

Webster 1913

• noun traffic created by the movement of aircraft
  

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• noun transportation by air
  air transport.
  

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• noun transportation by air
  air transport.
  

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• noun a transportation system for moving passengers or goods by air
  

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• a contrivance for shutting off foul air or gas from drains, sewers, etc.; a stench trap.

Webster 1913

• noun travel via aircraft
  aviation; air.
  
  • air travel involves too much waiting in airports
  • if you've time to spare go by air

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• noun someone who travels by airplane
  air traveler.
  

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• noun someone who travels by airplane
  air traveler.
  

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• a pipe or shaft for conducting foul or heated air from a room.

Webster 1913

• noun a military unit that is part of the airforce
  

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• 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.

Webster 1913

Air" ves`sel

Definitions

1. 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.

Webster 1913

• noun a sound wave that is transmitted via air
  

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• a passage for a current of air; as the air way of an air pump; an air way in a mine.

Webster 1913

• noun a shaft for ventilation
  air shaft.
  

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• adjective deriving oxygen from the air
  
  • he studied respiration in marine air-breathing vertebrates
  • large air-breathing ichthyosaurs had hydrofoils

WordNet

Air"-built` adjective

Definitions

1. Erected in the air; having no solid foundation; chimerical; as, an air-built castle.

Webster 1913

• verb control the humidity and temperature of
  air-condition.
  
  • The room was cool because it had been air-conditioned
• verb equip with an apparatus for controlling the humidity and temperature
  air-condition; air-cool.
  
  • Our house is not air-conditioned

WordNet

• verb control the humidity and temperature of
  air-condition.
  
  • The room was cool because it had been air-conditioned
• verb equip with an apparatus for controlling the humidity and temperature
  air-condition; air-cool.
  
  • Our house is not air-conditioned
• adjective satellite cooled by air conditioning
  

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• verb equip with an apparatus for controlling the humidity and temperature
  air-condition; air-cool.
  
  • Our house is not air-conditioned

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• verb equip with an apparatus for controlling the humidity and temperature
  air-condition; air-cool.
  
  • Our house is not air-conditioned
• adjective satellite cooled by a flow of air
  
  • an air-cooled engine

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Air"-drawn" adjective

Definitions

1. Drawn in air; imaginary.

   This is the air-drawn dagger. Shak.

Webster 1913

• adjective satellite made dry by contact with unheated air
  

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• verb drop (an object) from the air; unload from a plane or helicopter
  

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• adjective satellite not giving off moisture on exposure to the air
  

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• adjective satellite full of air
  

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• verb transport (cargo) by air
  air-freight; airfreight.
  

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• noun a duct that admits air to be mixed with fuel
  

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• adj.; as, air-line road.

Webster 1913

• noun a chamber (often underground) reinforced against bombing and provided with food and living facilities; used during air raids
  bomb shelter; bombproof.
  

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• verb transport (cargo) by air
  air-freight; airfreight.
  

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Air"-slacked` adjective

Definitions

1. Slacked, or pulverized, by exposure to the air; as, air-slacked lime.

Webster 1913

• verb alter by exposure to air with conversion at least in part to a carbonate
  
  • air-slake lime

WordNet

• noun a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind
  windsock; wind sock; air sock; sock; wind sleeve; drogue; wind cone.
  

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• adjective satellite having no weak points
  airtight.
  
  • an airtight defense
  • an airtight argument
• adjective satellite not allowing air or gas to pass in or out
  airtight; gas-tight.
  

WordNet

Air"-tight` adjective

Definitions

1. So tight as to be impermeable to air; as, an air-tight cylinder.

Air"-tight` noun

Definitions

1. A stove the draft of which can be almost entirely shut off. Colloq. U. S.

Webster 1913

• adjective operating between or launched from or involving rockets or aircraft in flight
  
  • air-to-air missiles
  • air-to-air communications

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• noun a missile designed to be launched from one airplane at another
  

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• adjective operating from or designed to be fired from aircraft at targets on the ground
  air-to-ground.
  
  • air-to-surface missiles

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• noun a missile designed to be launched from an airplane at a target on the ground
  air-to-ground missile.
  

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• adjective operating from or designed to be fired from aircraft at targets on the ground
  air-to-ground.
  
  • air-to-surface missiles

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• noun a missile designed to be launched from an airplane at a target on the ground
  air-to-ground missile.
  

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• noun a warm cupboard where you put newly washed clothes until they are completely dry
  

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• noun the sky as viewed during daylight
  blue; wild blue yonder; blue sky.
  
  • he shot an arrow into the blue

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• noun a welcome relief
  
  • the new management was like a breath of fresh air

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• noun capital and largest city of Argentina; located in eastern Argentina near Uruguay; Argentina's chief port and industrial and cultural center
  capital of Argentina.
  

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• noun wind moving at less than 1 knot; 0 on the Beaufort scale
  calm.
  

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• noun absentminded dreaming while awake
  revery; castle in Spain; air castle; daydream; daydreaming; reverie; oneirism.
  

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• a visionary project; a baseless scheme; an air castle; sometimes called a castle in Spain (F. Château en Espagne).

Webster 1913

• verb dispel differences or negative emotions
  
  • The group called a meeting to finally clear the air

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• noun strong turbulence in an otherwise cloudless region that subjects aircraft to violent updrafts or downdrafts
  

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• an engine operated by the elastic force of compressed air.

Webster 1913

• (Physiol.), the air (averaging 100 cubic inches) which can be drawn into the lungs in addition to the tidal air, by the deepest possible inspiration.

Webster 1913

• noun air at a pressure greater than that of the atmosphere
  
  • compressed air is often used to power machines

WordNet

• noun air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure
  air current; wind.
  
  • trees bent under the fierce winds
  • when there is no wind, row
  • the radioactivity was being swept upwards by the air current and out into the atmosphere

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• noun an inadvertent interruption in a broadcast during which there is no sound
  

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• noun an unventilated area where no air circulates
  

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• oxygen gas; so called by Dr. Priestly and others of his time.

Webster 1913

• oxygen gas.

Webster 1913

• (Old Chem.), carbonic acid or carbon dioxide; so called by Dr. Black because it can be absorbed or fixed by strong bases. See Carbonic acid, under Carbonic.

Webster 1913

• noun the flow of air
  air flow; airflow.
  
  • she adjusted the fan so that the airflow was directed right at her

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• noun a bomb that uses a fuel-air explosive
  thermobaric bomb; volume-detonation bomb; aerosol bomb; vacuum bomb.
  
  • a thermobaric bomb can create overpressures equal to an atomic bomb

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• noun a device consisting of a container of fuel and two explosive charges; the first charge bursts open the fuel container at a predetermined height and spreads the fuel in a cloud that mixes with atmospheric oxygen; the second charge detonates the cloud which creates an enormous blast wave and incinerates whatever is below
  FAE.
  

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• adjective satellite relating to an aircraft heavier than the air it displaces
  

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• noun a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it
  

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• noun air that has been heated and tends to rise
  
• noun loud and confused and empty talk
  rhetoric; palaver; empty talk; empty words.
  
  • mere rhetoric

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• noun balloon for travel through the air in a basket suspended below a large bag of heated air
  

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• adverb on everybody's mind
  in everyone's thoughts.
  
  • Christmas was in the air

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• . (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.

Webster 1913

• noun pollution resulting from an industrial plant discharging pollutants into the atmosphere
  

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• the old chemical name for hydrogen.

Webster 1913

• noun wind moving 1-3 knots; 1 on the Beaufort scale
  

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• adjective satellite relating to a balloon or other aircraft that flies because it weighs less than the air it displaces
  

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• noun aircraft supported by its own buoyancy
  

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• noun air in a liquid state
  

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• (Chem.), carbon dioxide; so called because of its deadly suffocating power. See Carbonic acid, under Carbonic.

Webster 1913

• noun the principal agency of the United States Navy for research and development for air warfare and missile weapon systems
  NAWCWPNS.
  

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• adverb very happily
  
  • we were floating on air at the news

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• noun where the air is unconfined
  out-of-doors; open; outdoors.
  
  • he wanted to get outdoors a little
  • the concert was held in the open air
  • camping in the open

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• adjective satellite in the open air
  alfresco.
  
  • an alfresco lunch
  • an open-air theater

WordNet

O"pen-air` adjective

Definitions

1. Taking place in the open air; outdoor; as, an open-air game or meeting.

Webster 1913

• noun a public marketplace where food and merchandise is sold
  open-air market; market square.
  

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• noun a public marketplace where food and merchandise is sold
  open-air market; market square.
  

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• adverb without warning
  out of nothing; from nowhere.
  
  • your cousin arrived out of thin air

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• noun air defense by the use of deception or dispersion or protective construction
  

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• noun a short light gust of air
  puff; whiff.
  

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• verb act like the master of
  lord it over; queen it over; act superior.
  
  • He is lording it over the students

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• . (Physiol.) Same as Supplemental air, under Supplemental.

Webster 1913

• (Physiol.), that portion of air contained in the lungs which can not be expelled even by the most violent expiratory effort. It amounts to from 75 to 100 cubic inches. Cf. Supplemental air, under Supplemental.

Webster 1913

• noun the airforce of Great Britain
  RAF.
  

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• noun a specialist regiment of the British army that is trained in commando techniques of warfare and used in clandestine operations (especially against terrorist groups)
  SAS.
  

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• (Physiol.), the air which under ordinary circumstances does not leave the lungs in respiration.

Webster 1913

• (Physiol.), the air which in addition to the residual air remains in the lungs after ordinary expiration, but which, unlike the residual air, can be expelled; reserve air.

Webster 1913

• adjective operating from or designed to be launched from the ground against an airborne target
  
  • surface-to-air missiles

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• noun a guided missile fired from land or shipboard against an airborne target
  SAM.
  

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• noun the shipboard system that fires missiles at aircraft
  

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• verb take a walk; go for a walk; walk for pleasure
  walk.
  
  • The lovers held hands while walking
  • We like to walk every Sunday

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• the air out of doors.

Webster 1913

• noun nowhere to be found in a giant void
  
  • it vanished into thin air

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• (Physiol.), the air which passes in and out of the lungs in ordinary breathing. It varies from twenty to thirty cubic inches.

Webster 1913

• See under Aback, Advantage, etc.

Webster 1913

• to be divulged; to be made public.

Webster 1913

• to go abroad; to walk or ride out.

Webster 1913

• to take off.

Webster 1913

• noun the airforce of the United States of America; the agency that defends the United States through control and exploitation of air and space
  USAF; United States Air Force; U. S. Air Force; Air Force.
  

WordNet

• noun the airforce of the United States of America; the agency that defends the United States through control and exploitation of air and space
  USAF; United States Air Force; U. S. Air Force; Air Force.
  

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• noun a school for training men and women to become officers in the United States Air Force
  United States Air Force Academy.
  

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• adjective satellite very uncertain
  
  • left everything up in the air
• adjective satellite not yet determined
  
  • plans are still up in the air

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• noun the airforce of the United States of America; the agency that defends the United States through control and exploitation of air and space
  USAF; United States Air Force; U. S. Air Force; Air Force.
  

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• noun a school for training men and women to become officers in the United States Air Force
  United States Air Force Academy.
  

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• oxygen gas; so called because essential to animal life. Obs.

Webster 1913

• verb feel extreme happiness or elation
  be on cloud nine; exult; jump for joy.
  

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• noun a state of extreme happiness
  cloud nine; blissfulness; bliss; seventh heaven.
  

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