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katabatic

[kat-uh-bat-ik] /ˌkæt əˈbæt ɪk/
adjective, Meteorology
1.
(of a wind or air current) moving downward or down a slope.
Compare anabatic (def 1).
Origin
1915-1920
1915-20; < Greek katabatikós pertaining to going down, equivalent to kata- kata- + ba- (stem of baínein to go; see basis) + -tikos -tic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for katabatic
  • The velocity of katabatic winds can be intensified by large and small-scale pressure gradients.
  • Latent heat polynyas are maintained by persistent katabatic winds that drain off the continent.
British Dictionary definitions for katabatic

katabatic

/ˌkætəˈbætɪk/
adjective
1.
(of winds) blowing downhill through having become denser with cooling, esp at night when heat is lost from the earth's surface Compare anabatic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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katabatic in Science
katabatic
  (kāt'ə-bāt'ĭk)   
Relating to wind currents that blow down a gradient, especially down the slopes of a mountain or glacier. When air comes in contact with the cool surface of a glacier or the upper regions of a mountain or slope, the air cools, becomes dense, and blows downward. Katabatic winds are usually cool and are especially common at night in polar regions. Compare anabatic.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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