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erosion

[ih-roh-zhuh n] /ɪˈroʊ ʒən/
noun
1.
the act or state of eroding; state of being eroded.
2.
the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc.
Origin
1535-1545
1535-45; < Latin ērōsiōn- (stem of ērōsiō). See erose, -ion
Related forms
erosional, adjective
antierosion, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for erosional

erosion

/ɪˈrəʊʒən/
noun
1.
the wearing away of rocks and other deposits on the earth's surface by the action of water, ice, wind, etc
2.
the act or process of eroding or the state of being eroded
Derived Forms
erosive, erosional, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for erosional

erosion

n.

1540s, from Middle French erosion (16c.), from Latin erosionem (nominative erosio) "a gnawing away," noun of action from past participle stem of erodere "gnaw away," from ex- "away" (see ex-) + rodere "gnaw" (see rodent).

Online Etymology Dictionary, © 2010 Douglas Harper
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erosional in Medicine

erosion e·ro·sion (ĭ-rō'zhən)
n.

  1. Superficial destruction of a surface by friction, pressure, ulceration, or trauma.

  2. The wearing away of a tooth by chemical or abrasive action. Also called odontolysis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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erosional in Science
erosion
  (ĭ-rō'zhən)   
The gradual wearing away of land surface materials, especially rocks, sediments, and soils, by the action of water, wind, or a glacier. Usually erosion also involves the transport of eroded material from one place to another, as from the top of a mountain to an adjacent valley, or from the upstream portion of a river to the downstream portion.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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erosional in Culture

erosion definition


A type of weathering in which surface soil and rock are worn away through the action of glaciers, water, and wind.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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