erosion
Americannoun
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erosions
plural
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the act or state of eroding; state of being eroded.
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the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc.
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the gradual decline or disintegration of something.
Each candidate is blaming the other’s party for the erosion of international trade.
noun
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the wearing away of rocks and other deposits on the earth's surface by the action of water, ice, wind, etc
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the act or process of eroding or the state of being eroded
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of erosion
First recorded in 1535–45; from Latin ērōsiōn- (stem of ērōsiō ), derivative of ērōdere “to gnaw, eat away”; see origin at erode, -ion
Explanation
The Grand Canyon is a monumental example of erosion—the entire canyon was carved by the flow of the Colorado River, which slowly dug the canyon out of stone over the course of eons. Erosion is the wearing away of sand, soil, or rock by water or wind. But it also has a metaphorical sense. The erosion of standards for behavior in society means that our grandparents would be shocked by what passes for good manners today.
Vocabulary lists containing erosion
Physical Geography - Introductory
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Can You Dig It? Words for Dirt and Soil
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Physical Geography - Middle School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
In September, high tides and powerful wave activity from Hurricane Marie buffeted the San Clemente coastline, temporarily halting Pacific Surfliner and Metrolink service after more erosion and slope damage was spotted near the train tracks.
From Los Angeles Times ● Oct. 8, 2026
Australia's climate minister Chris Bowen said the money would "help these countries adjust to climate change, particularly focused on the coastlines with erosion, with rising sea levels".
From Barron's ● Oct. 7, 2026
What appeared to be a slow-moving fiscal erosion turned urgent in recent months.
From The Wall Street Journal ● Oct. 6, 2026
He said heavy rain could overwhelm drainage systems and penetrate walls, causing damp and erosion, while repeated cycles of wetting, drying, freezing and thawing could harm stonework.
From BBC ● Oct. 4, 2026
Because of settling and erosion and downright slipshod construction, they tilted dangerously toward the street.
From "The Glass Castle" by Jeannette Walls
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The ongoing Ebola crisis is escalating quickly, already ranked the third largest outbreak in history — and experts say erosions of U.S. health policy have fueled the crisis.
From Salon ● May 30, 2026
In these nations, the patterns were similar – erosions in freedom of speech, open elections, the rule of law, judicial independence, civil society and academic freedom.
From BBC ● Sep. 27, 2025
California’s snowmelt is leading to flooding and erosions.
From Los Angeles Times ● Jun. 19, 2023
Your doctor may also test you for anemia; in some cases, a large hiatal hernia can cause GI erosions, often from acid reflux, that bleed.
From Washington Post ● Oct. 30, 2022
My face has not ignored the passage of time, but recorded it with scars, lines, furrows, and erosions.
From "Travels with Charley in Search of America" by John Steinbeck
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.