air conditioning

[ airkuhn-dish-uh-ning ]
See synonyms for air conditioning on Thesaurus.com
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 of air conditioning

1
First recorded in 1905–10
  • Also called AC, A/C, A.C., a/c, a.c. [ey-see] /ˈeɪˈsi/ .

Other words from air conditioning

  • air-con·di·tion·ing, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use air conditioning in a sentence

  • There was a faint hum that built up all over the ship as the air conditioning came on at the same time.

    Unwise Child | Gordon Randall Garrett
  • 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
  • Dillon sent out a rush request for air conditioning equipment, omitted, by some mistake, from the supplies.

    Feet Of Clay | Phillip Hoskins
  • Every building had been sealed and filters had been built into the air conditioning systems.

    Islands of Space | John W Campbell
  • Kovandaswamy was sweating despite the air-conditioning, despite his almost-naked state.

British Dictionary definitions for air conditioning

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 of air conditioning

  • 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