What is "air conditioning"

n. 1 The state of temperature and humidity produced by an air conditioner. 2 An air conditioner or system of air conditioners. vb. (alternative spelling of air-conditioning English)

n. a system that keeps air cool and dry [syn: air conditioner]

Air conditioning (often referred to as AC, A.C., or A/C) is the process of altering the properties of air (primarily temperature and humidity) to more comfortable conditions, typically with the aim of distributing the conditioned air to an occupied space such as a building or a vehicle to improve thermal comfort and indoor air quality. In common use, an air conditioner is a device that removes heat from the air inside a building or vehicle, thus lowering the air temperature. The cooling is typically achieved through a refrigeration cycle, but sometimes evaporation or free cooling is used. Air conditioning systems can also be made based on desiccants.

In the most general sense, air conditioning can refer to any form of technology that modifies the condition of air (heating, cooling, (de-)humidification, cleaning, ventilation, or air movement). However, in construction, such a complete system of heating, ventilation, and air conditioning is referred to as heating, ventilation, and air conditioning ( HVAC – as opposed to AC).

Air Conditioning was the November 1970 debut album by British rock group Curved Air. It reached number 8 in the UK albums chart in December, 1970.

On the picture disc (subsequently used as the album cover) the album title was shown as "Airconditioning", while the subsequent green label issue had it as "Air Conditioning".