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air conditioning

a system or process for controlling the temperature, humidity, and sometimes the purity of the air in an interior, as of an office, theater, laboratory, or house, especially one capable of cooling.
an air-conditioning system or unit.
Origin of air conditioning
Related forms
air-conditioning, adjective


[air-kuh n-dish-uh n] /ˈɛər kənˌdɪʃ ən/
verb (used with object)
to furnish with an air-conditioning system.
to treat (air) with such a system.
1930-35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for air-conditioning
Contemporary Examples
Historical Examples
  • We have no engines except the stationary generators that give us current for our air-conditioning and our utilities.

    Wind Charles Louis Fontenay
  • All the places have air-conditioning and what they really want is for you to wear a shirt and tie.

    The Hated Frederik Pohl
  • In the background there was the hum of air-conditioning and the clatter of roboservants preparing for the night's election party.

    Operation Haystack Frank Patrick Herbert
  • He walked over to the wall control and shut off the air-conditioning in a hurry.

    Occasion for Disaster Gordon Randall Garrett
  • The smell of the hot springs burned his nose even through the air-conditioning system.

    The Flaming Mountain Harold Leland Goodwin
  • I said our air-conditioning system goes haywire and that we were ripping out a thousand old boilers and coolers.

    Satan and the Comrades Ralph Bennitt
  • Malone wondered briefly whether or not they'd turned off the air-conditioning.

    Occasion for Disaster Gordon Randall Garrett
British Dictionary definitions for air-conditioning


(transitive) to apply air conditioning to

air conditioning

a system or process for controlling the temperature and sometimes the humidity and purity of the air in a house, etc
Derived Forms
air conditioner, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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