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[ad-vek-shuh n] /ædˈvɛk ʃən/
Meteorology. the horizontal transport of atmospheric properties (distinguished from convection).
the horizontal flow of air, water, etc.
Origin of advection
1905-10; < Latin advectiōn- (stem of advectiō), equivalent to advect(us), past participle of advehere (ad- ad- + vec-, variant stem of vehere to carry, bring + -tus past participle suffix) + -iōn- -ion
Related forms
advective, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for advection
  • The vast majority of heating and cooling energy is lost through two mechanisms: advection and conduction.
  • The horizontal differential creates a pressure gradient which drives advection.
  • advection fog forms when humid air flows over cold ground or water.
  • advection volumes for the remap step are calculated using the cell face centered velocities.
  • The right panel shows an overlay to facilitate comparison of the various advection methods.
  • The physical processes of advection and diffusion are not represented.
  • Cold air advection dominated from the surface to the top of the frontal inversion.
British Dictionary definitions for advection


the transference of heat energy in a horizontal stream of gas, esp of air
Word Origin
C20: from Latin advectiō conveyance, from advehere, from ad- to + vehere to carry
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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advection in Science
  1. The transfer of a property of the atmosphere, such as heat, cold, or humidity, by the horizontal movement of an air mass.

  2. The rate of change of an atmospheric property caused by the horizontal movement of air.

  3. The horizontal movement of water, as in an ocean current.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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