air-conditioner

air conditioner

noun
an air-conditioning device.

Origin:
1905–10

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Etymonline
Word Origin & History

air conditioner
from air (1) + agent n. from condition; along with air-conditioning, first attested 1909, originally an industrial process; main modern use in residences and office buildings is from 1930s.
Online Etymology Dictionary, © 2010 Douglas Harper
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