air conditioning

American  

[air kuhn-dish-uh-ning] / ˈɛər kənˈdɪʃ ə nɪŋ /

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.

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air conditioning British  

noun

1. a system or process for controlling the temperature and sometimes the humidity and purity of the air in a house, etc

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Other Word Forms

• air conditioner noun
• air-conditioning adjective

Etymology

Origin of air conditioning

First recorded in 1905–10

Example Sentences

He was taking a class on air conditioning systems, and his vehicle’s AC needed to be recharged.

From Los Angeles Times

She said there was no air conditioning in the van and she became nauseous and started to experience hypertension symptoms.

From Los Angeles Times

He has been confined to a small room with a minibar, air conditioning and a television at a Federal Police headquarters in Brasilia.

From Barron's

Barcelona, the capital of Catalonia, has led the way in setting up a network of climate shelters in libraries, schools and other public buildings with air conditioning.

From Barron's

We asked ChatGPT, which advised “embodied in-person work” such as heating and air conditioning technician, pool cleaner.

From The Wall Street Journal