cor·ro·sion | \kə-ˈrō-zhən \

Definition of corrosion 

1 : the action, process, or effect of corroding

2 : a product of corroding

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Synonyms & Antonyms for corrosion


attrition, erosion, undermining, waste



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Examples of corrosion in a Sentence

the corrosion of family values that is often brought on by great wealth

Recent Examples on the Web

Some Customers Think So Number of the Day 123,000 The number of Model S cars that Tesla is recalling after discovering that bolt corrosion caused by deicing salts could cause the power steering to fail. Gerard Baker, WSJ, "The 10-Point.," 30 Mar. 2018 These workers also found the still-unknown way to preserve the weapons from corrosion, Sung added. Carol Motsinger,, "This wonder of the world is now in Cincinnati," 20 Apr. 2018 Restoration of the aircraft included corrosion treatment and filling an extensive list of missing parts. Plain Dealer Staff,, "Restored B-17 bomber Memphis Belle debuts Thursday at Air Force museum in Dayton," 13 May 2018 Last Friday, the Associated Press reported that CX-7 crossovers made from February 14, 2006 to May 9, 2012 were being recalled due to a corrosion issue that was causing steering malfunctions. Cory Stieg, Good Housekeeping, "Mazda Recalls Millions of Vehicles Worldwide," 1 Sep. 2016 But what looked like missing grout and corrosion between the tiles was really grime. Marni Jameson,, "7 mistakes rookie DIY decorators make," 13 July 2018 In reality, the corrosion had gone to work releasing the lead from the old pipes into the drinking water. Richard Horan, The Christian Science Monitor, "'The Poisoned City' tells the horrific story of Flint's contaminated water," 10 July 2018 The plates were weighed to see if there was any loss due to corrosion. Linda G. Kramer,, "Berea water plant completes corrosion testing: Community Voices," 26 Apr. 2018 The company estimated that fewer than 1 percent of its cars in the United States have exhibited the unusual corrosion. David R. Baker, San Francisco Chronicle, "Tesla issues Model S recall over corroding bolts," 29 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'corrosion.' 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 corrosion

14th century, in the meaning defined at sense 1

History and Etymology for corrosion

Middle English corrosioun, borrowed from Late Latin corrōsiōn-, corrōsiō "act of gnawing," from Latin corrōdere "to gnaw, chew up" + -tiōn-, -tiō, suffix of verbal action — more at corrode

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Statistics for corrosion

Last Updated

29 Sep 2018

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Time Traveler for corrosion

The first known use of corrosion was in the 14th century

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More Definitions for corrosion


cor·ro·sion | \kə-ˈrō-zhən \

Kids Definition of corrosion

: the process or effect of destroying, weakening, or wearing away little by little


cor·ro·sion | \kə-ˈrō-zhən \

Medical Definition of corrosion 

1 : the action, process, or effect of corroding arterial corrosion that characterizes arteriosclerosisJournal of the American Medical Association

2 : a study specimen of an organ or other structure prepared by injection of hollow parts (as blood vessels) with a plastic and subsequent removal of the surrounding tissue by corrosion

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Comments on corrosion

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


lying above or upon

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