katabatic

adjective
kat·​a·​bat·​ic | \ˌka-tə-ˈba-tik \

Definition of katabatic 

: relating to or being a wind produced by the flow of cold dense air down a slope (as of a mountain or glacier) in an area subject to radiational cooling

First Known Use of katabatic

1918, in the meaning defined above

History and Etymology for katabatic

Greek katabatos descending, verbal of katabainein to go down, from kata- cata- + bainein to go — more at come

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The first known use of katabatic was in 1918

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