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The process of erosion and deposition in which a nearly level surface is produced, as by streams, wind, or ocean currents.
[Latin plānum, flat surface; see plane1 + -ation.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Geological Science) the erosion of a land surface until it is basically flat
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
pla•na•tion(pleɪˈneɪ ʃən, plə-)
the erosional work done by streams that contributes to gradation of the land surface.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
the formation of a flat or level surface by the process of erosion.See also: Earth
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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|Noun||1.||planation - the process of erosion whereby a level surface is produced|
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