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

Synonyms & Antonyms for erosion


attrition, corrosion, undermining, waste



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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 law’s opponents see it as an erosion of the rights guaranteed to Hong Kong for 50 years after the handover. Washington Post, "Arrests made over Hong Kong protests, legislature break-in," 3 July 2019 Globally, the fake news menace has led to an erosion in the media’s trustworthiness, Ipsos said. Sangeeta Tanwar, Quartz India, "Fake news-wary urban Indians trust their inner circle—and government mouthpieces—the most," 3 July 2019 This would ideally entail a frank discussion of how both parties have been complicit in the erosion of that authority. Greg Sargent, The Denver Post, "Sargent: Half the Senate told Trump not to abuse war powers against Iran," 28 June 2019 In our view, the limited competition among potential host cities for the 2026 Winter Games was only natural given the soaring costs to put on these events and the erosion of public support among leery taxpayers. Eva Kassens-noor, The Conversation, "Italy’s minimal competition to host the 2026 Winter Olympics," 25 June 2019 For their part, commercial collectors argue that fossils left in the ground will eventually be lost to erosion and that museums can hardly afford to collect every specimen. Fox News, "The problem with buying dinosaurs," 22 June 2019 Concerns remain among some veterans and lawmakers that the act’s implementation will shift federal dollars to the private sector, leading to privatization of the VA health system, and that funding will be inadequate, leading to an erosion of care. Aaron Kassraie, San Diego Union-Tribune, "Veterans now eligible for more private health care options," 10 June 2019 My heart hurts for the erosion of our long-term friendship. Amy Dickinson, Detroit Free Press, "Grown-ups worry about unequal playdates," 8 June 2019 My heart hurts for the erosion of our long-term friendship. Ask Amy,, "Ask Amy: This mom needs to grow up and get over her lack of family playdate invitations," 8 June 2019

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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Statistics for erosion

Last Updated

12 Jul 2019

Look-up Popularity

Time Traveler for erosion

The first known use of erosion was in 1541

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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

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Comments on erosion

What made you want to look up erosion? Please tell us where you read or heard it (including the quote, if possible).


appealing forcibly to the mind or reason

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