Also found in: Thesaurus, Medical, Legal, Encyclopedia.
Related to air-conditioning: Air-conditioning system


tr.v. air-con·di·tioned, air-con·di·tion·ing, air-con·di·tions
To subject to, provide with, or ventilate by air conditioning.


(Mechanical Engineering) a system or process for controlling the temperature and sometimes the humidity and purity of the air in a house, car etc


() noun
1. the mixture of gases we breathe; the atmosphere. Mountain air is pure.
2. the space above the ground; the sky. Birds fly through the air.
3. appearance. The house had an air of neglect.
4. a tune. She played a simple air on the piano.
1. to expose to the air in order to dry or make more fresh etc. to air linen.
2. to make known. He loved to air his opinions.
ˈairbag noun
a safety bag in a car that protects the driver or a passenger in an accident.
ˈairily adverb
in a light-hearted manner. She airily dismissed all objections.
ˈairiness noun
ˈairing noun
a short walk etc in the open air. She took the baby for an airing.
ˈairless adjective
1. (of weather) still and windless. It was a hot, airless night.
2. (of a room etc) stuffy and without fresh air.
ˈairy adjective
1. with plenty of (fresh) air. an airy room.
2. light-hearted and not serious. an airy disregard for authority.
ˈairborne adjective
in the air or flying. We were airborne five minutes after boarding the plane; airborne germs.
ˌair-conˈditioned adjective
having air-conditioning. an air-conditioned building.
ˌair-conˈditioner noun
an apparatus providing air-conditioning.
ˌair-conˈditioning noun
a method of providing a room, building etc with air of a controlled temperature and humidity.
ˈaircraftplural ˈaircraft noun
any of several types of machine for flying in the air. Enemy aircraft have been sighted.
aircraft carrier
a ship which carries aircraft and which aircraft can use for landing and taking off.
ˈairfield noun
an area of ground (with buildings etc) where (usually military) aircraft are kept and from which they fly.
air force
the part of the armed services which uses aircraft. the army, navy and air force.
ˈair-gun noun
a gun that is worked by air under pressure.
air hostess
a young woman who looks after passengers in an aircraft.
air letter
a letter sent by airmail.
ˈairlift noun
an operation to move cargo or people, carried out by air.
ˈairline noun
(a company that owns) a regular air transport service. Which airline are you travelling by?
ˈairliner noun
a (usually large) aircraft for carrying passengers.
ˈair-lock noun
a bubble in a pipe which prevents liquid from flowing along it.
ˈairmail noun
a system of carrying mail by air. Send this parcel by airmail; (also adjective) an airmail letter.
ˈairman noun
a member of an air force.
ˈair pollution noun
Air pollution is caused by smoke, toxic gases etc.
ˈairplane noun
(American) an aeroplane.
ˈairport noun
a place where passenger aircraft arrive and depart, with buildings for customs, waiting-rooms etc.
ˈair-pump noun
a pump for forcing air in or out of something.
ˈair-raid noun
an attack by aircraft.
ˈairship noun
an aircraft that is lighter than air and can be steered etc.
ˈairtight adjective
(of a container etc) into or through which air cannot pass. an airtight seal on a bottle.
ˈairway noun
a regular course followed by aircraft.
on the air
broadcasting (regularly) on radio or television.
put on airs / give oneself airs
to behave as if one is better or more important than others. She gives herself such airs that everyone dislikes her.
References in periodicals archive ?
Buses and trolley buses air conditioning equipment repair and revision, the following bidding options A) parts: bus air-conditioning systems in case of repair SE-track AC buses are air-conditioned and fitted review.
Separating buildings in thermal zones helps in choosing the air-conditioning system which will be used for their air treatment.
LANCASTER -- Warehouse workers trying to unionize delivered a petition Friday asking Rite Aid executives to install air-conditioning at the drug store chain's giant Lancaster distribution center.
Obayashi's green tech is also evident in the HVAC (heating, air-conditioning, ventilation and cooling) systems.
Central air-conditioning is now becoming the means for architects to create better spaces in residential hi-rises.
Two halls house a separate part of the exhibition -- 'Aircontec' -- of air-conditioning products.
LANCASTER - Court operations at the 21-month-old, $109 million Antelope Valley Courthouse were disrupted again Thursday after a chiller went down, knocking out the building's air-conditioning system.
The main areas on which to focus are lighting and heating, ventilating and air-conditioning (HVAC) - i.
A malfunction over the weekend knocked out the air-conditioning system in the four-story courthouse Monday, when the mercury in the Antelope Valley was expected to hit a high of 110 degrees.
As most building and facilities managers know, these two refrigerants are the most widely used by large chillers in building air-conditioning systems in the New York metropolitan region - and have gone from being the least expensive products to the most expensive thanks to a punitive tax that was intended to stimulate use of greener alternatives.
In their typical fashion, district officials ignored common sense and good advice to bypass superior air-conditioning methods of central air or rooftop units.
NASDAQ: ICGN) have announced a joint development program to create critical components of desiccant- based dehumidification systems for use in air-conditioning units.