erosion [ ih- roh-zh uh n ] SHOW IPA / ɪˈroʊ ʒən / PHONETIC RESPELLING EXAMPLES | WORD ORIGIN noun the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc. Origin of erosion
First recorded in
is from the
-ion Related forms e·ro·sion·al, adjective an·ti·e·ro·sion, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for erosional British Dictionary definitions for erosional noun the wearing away of rocks and other deposits on the earth's surface by the action of water, ice, wind, etc the act or process of eroding or the state of being eroded Derived Forms erosive or erosional, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for erosional 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
Medicine definitions for erosional n. Superficial destruction of a surface by friction, pressure, ulceration, or trauma. The wearing away of a tooth by chemical or abrasive action. odontolysis
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for erosional 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Culture definitions for erosional
A type of
weathering in which surface soil and rock are worn away through the action of glaciers, water, and wind.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.