corrosion

noun

cor·​ro·​sion kə-ˈrō-zhən How to pronounce corrosion (audio)
Synonyms of corrosionnext
1
: the action, process, or effect of corroding
2
: a product of corroding

Synonyms of corrosion

Examples of corrosion in a Sentence

the corrosion of family values that is often brought on by great wealth
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Protective coatings and paints are one of the most mature applications, especially in marine, industrial, automotive, and infrastructure settings, where self-healing layers can close micro-scratches and prevent corrosion. Georgina Jedikovska, Interesting Engineering, 11 Feb. 2026 Rust and corrosion will take their toll over time. David Beaulieu, The Spruce, 11 Feb. 2026 Other causes can be improper installation, corrosion or ice. Keenan Thompson, Freep.com, 4 Feb. 2026 Due to its strength, contact with even a diluted bleach solution can cause pitting (localized, severe corrosion causing small holes) and rusting on blades. Andy Wilcox, Better Homes & Gardens, 3 Feb. 2026 See All Example Sentences for corrosion

Word History

Etymology

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

First Known Use

14th century, in the meaning defined at sense 1

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

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Cite this Entry

“Corrosion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/corrosion. Accessed 16 Feb. 2026.

Kids Definition

corrosion

noun
cor·​ro·​sion kə-ˈrō-zhən How to pronounce corrosion (audio)
: the action, process, or effect of corroding

Medical Definition

corrosion

noun
cor·​ro·​sion kə-ˈrō-zhən How to pronounce corrosion (audio)
1
: the action, process, or effect of corroding
arterial corrosion that characterizes arteriosclerosisThe Journal 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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