erosions

erosion

[ih-roh-zhuhn]
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:
1535–45; < Latin ērōsiōn- (stem of ērōsiō). See erose, -ion

erosional, adjective
antierosion, adjective
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World English Dictionary
erosion (ɪˈrəʊʒən)
 
n
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
 
e'rosive
 
adj
 
e'rosional
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

erosion
1540s, from M.Fr. erosion, from L. erosionem (nom. erosio), from erodere "gnaw away," from ex- "away" + rodere "gnaw" (see rodent).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

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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American Heritage
Science Dictionary
erosion   (ĭ-rō'zhən)  Pronunciation Key 
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.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

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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