cor·​ro·​sion | \ kə-ˈrō-zhən How to pronounce corrosion (audio) \

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

Inspect your burners for signs of corrosion or anything blocking the row of flame holes. Joe Lindsey, Popular Mechanics, "How to Clean Your BBQ Grill," 14 May 2019 These fungal species are known for causing corrosion, which could be alarming considering the thin metal walls protecting the astronauts from the vacuum of space. Avery Thompson, Popular Mechanics, "Scientists Found Loads of Bacteria and Fungi on the ISS," 8 Apr. 2019 Investigators later determined that Department of Environmental Quality officials misread federal guidelines and did not require use of corrosion-control additives. John Flesher, The Seattle Times, "Michigan governor revamps environmental agency after Flint," 4 Feb. 2019 It has been fined seven times since 2010 by Massachusetts’ Department of Public Utilities, totaling $100,000, for improper pressure testing, corrosion control, faulty paperwork and other infractions. Russell Gold, WSJ, "Pipe Pressure Eyed in Gas Blasts," 14 Sep. 2018 First, components are designed in thousands of different materials and alloys for reasons of performance (hardness, resistance to corrosion, etc.). WSJ, "While Great, 3-D Printers Have Limitations," 2 Nov. 2018 Coolant does raises the boiling point of the cooling system in summer, lowers the freezing point in winter, and protects the engine and cooling system from corrosion. Zachary Palmer, Popular Mechanics, "Choosing the Right Coolant for Your Car," 4 Sep. 2018 Although warships are designed to be corrosion-resistant they are not designed to be submerged under salt water (ships other than submarines, anyway), particularly sensitive electronics. Kyle Mizokami, Popular Mechanics, "That Wrecked Norwegian Frigate Is Pretty Much Toast," 13 Nov. 2018 And with Thanksgiving only three weeks away, don't forget to inspect your fire extinguisher for any signs of corrosion, missing pull-pins, and/or changes in the pressure gauge. Caroline Picard, Good Housekeeping, "Why You Need to Check Your Smoke Detectors During Daylight Saving," 2 Nov. 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

26 May 2019

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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 How to pronounce corrosion (audio) \

Kids Definition of corrosion

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


cor·​ro·​sion | \ kə-ˈrō-zhən How to pronounce corrosion (audio) \

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).


to move with exaggerated bouncy motions

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