AIRMET

noun

ˈer-ˌmet 

variants or less commonly airmet

plural AIRMETs also airmets

: a notice of potentially hazardous weather conditions (such as turbulence, icing, or low visibility) along a planned flight route that is provided to the pilot of an aircraft before takeoff compare sigmet

Word History

Etymology

airmen's meteorological information

First Known Use

1950, in the meaning defined above

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