ero·​sion | \ i-ˈrō-zhən How to pronounce erosion (audio) \

Definition of erosion

1a : the action or process of eroding
b : the state of being eroded
2 : an instance or product of erosion

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Other Words from erosion

erosional \ i-​ˈrōzh-​nəl How to pronounce erosion (audio) , -​ˈrō-​zhə-​nᵊl \ adjective
erosionally \ i-​ˈrōzh-​nəl-​ē How to pronounce erosion (audio) , -​ˈrō-​zhə-​nᵊl-​ \ adverb

Synonyms & Antonyms for erosion



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Examples of erosion in a Sentence

Landscapers planted grass to stop the erosion of the hillside. Centuries of erosion by wind have carved grooves in the rocks.
Recent Examples on the Web The structure is designed to protect the base of the bluffs from erosion caused by waves and sea-level rise. Phil Diehl, San Diego Union-Tribune, 12 Sep. 2021 The project, which was completed before the Aug. 17 flood, included rock structure placement, minor grading and area cleanup to decrease serious erosion. Mackenzie Brower, The Arizona Republic, 12 Sep. 2021 But millennia of erosion and glaciers have turned the mighty mountains into modest hills stretching for 100 miles through Ashland and Iron counties to Lake Gogebic in Michigan’s Upper Peninsula. Chelsey Lewis, Milwaukee Journal Sentinel, 9 Sep. 2021 Historically, sand moved naturally on and off the beach, but development along the shoreline has stymied that process, limiting the input of sand and exacerbating erosion. Kurtis Alexander, San Francisco Chronicle, 9 Sep. 2021 The canyons were formed by poor farming practices during the 1800s, when farmers took no steps to avoid soil erosion. Mary Caldwell, ajc, 6 Sep. 2021 The area will be used for learning and research about stormwater runoff erosion management, native grasses and plants, bees and other pollinators, and soil quality. From Usa Today Network And Wire Reports, USA TODAY, 2 Sep. 2021 That was Theresa speaking to me in my first film about coastal erosion in Louisiana. Duy Linh Tu, Scientific American, 31 Aug. 2021 Meanwhile, an uptick in farming, industry, and urban development has fed eutrophication – an increase in biomass and algae that deoxygenates water and accelerates erosion. Kang-chun Cheng, The Christian Science Monitor, 31 Aug. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'erosion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of erosion

1541, in the meaning defined at sense 1a

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Time Traveler for erosion

Time Traveler

The first known use of erosion was in 1541

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Dictionary Entries Near erosion



erosion cycle

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Statistics for erosion

Last Updated

16 Sep 2021

Cite this Entry

“Erosion.” Dictionary, Merriam-Webster, Accessed 21 Sep. 2021.

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More Definitions for erosion



English Language Learners Definition of erosion

: the gradual destruction of something by natural forces (such as water, wind, or ice) : the process by which something is eroded or worn away


ero·​sion | \ i-ˈrō-zhən How to pronounce erosion (audio) \

Kids Definition of erosion

: the act of wearing away or eroding : the state of being eroded


ero·​sion | \ i-ˈrō-zhən How to pronounce erosion (audio) \

Medical Definition of erosion

1a : the superficial destruction of a surface area of tissue (as mucous membrane) by inflammation, ulceration, or trauma erosion of the uterine cervix
b : progressive loss of the hard substance of a tooth
2 : an instance or product of erosion a circular erosion on the skin

More from Merriam-Webster on erosion

Nglish: Translation of erosion for Spanish Speakers

Britannica English: Translation of erosion for Arabic Speakers Encyclopedia article about erosion


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