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air conditioning

noun
1.
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.
2.
an air-conditioning system or unit.
Origin
1905-1910
1905-10
Related forms
air-conditioning, adjective

air-condition

[air-kuh n-dish-uh n] /ˈɛər kənˌdɪʃ ən/
verb (used with object)
1.
to furnish with an air-conditioning system.
2.
to treat (air) with such a system.
Origin
1930-35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for airconditioning

air-condition

verb
1.
(transitive) to apply air conditioning to

air conditioning

noun
1.
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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