Definition of air-conditioning

  1. :  a system used for cooling and drying the air in a building, room, etc. <She wanted her house to have air-conditioning.> —often used before another noun <an air-conditioning system>

Word by Word Definitions

air-conditionplay air-conditioning
  1. :  to equip (something, such as a building) with an apparatus for washing air and controlling its humidity and temperature

    :  to subject (air) to these processes

Seen and Heard

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