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Any of the chemical or mechanical processes by which objects exposed to the weather are worn or broken down.
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.
(Physical Geography) the mechanical and chemical breakdown of rocks by the action of rain, snow, cold, etc
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
weath•er•ing(ˈwɛð ər ɪŋ)
the process by which various natural agents, as wind and water, act upon exposed rock, causing it to disintegrate to sand and soil.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
The decay and break up of rocks on the Earth’s surface by natural chemical and mechanical processes.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
n (Geol) → Verwitterung f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
weathering[ˈwɛðərɪŋ] n (of rocks) → degradazione f meteorica
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995