deformation

noun

de·​for·​ma·​tion ˌdē-ˌfȯr-ˈmā-shən How to pronounce deformation (audio) ˌde-fər- How to pronounce deformation (audio)
1
: alteration of form or shape
also : the product of such alteration
2
: the action of deforming : the state of being deformed
3
: change for the worse
deformational adjective

Examples of deformation in a Sentence

the catastrophic deformation of the steel girders under the enormous weight of the bridge
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.
Because of the slope’s slow-moving collapse, scientists can study the landslide’s historical rates of deformation and see how those changes relate to the retreat of the Barry Arm glacier. Darren Orf, Smithsonian Magazine, 18 Mar. 2025 If the volcano doesn’t erupt at all, gas emissions, earthquakes, and ground deformations would slowly decline, disappearing over a few weeks or months without ever escalating into an explosion. Sam Walters, Discover Magazine, 17 Mar. 2025 In addition to these elevated gas emissions, the volcanologists at the Alaska Volcano Observatory have also recorded escalations in earthquakes and ground deformations, with over 100 earthquakes having occurred at Mount Spurr each week for at least the last month. Sam Walters, Discover Magazine, 17 Mar. 2025 As for timing, the signs suggest that the eruption would be sometime soon, with additional elevations in gas emissions, earthquakes, and ground deformations occurring in the lead-up to the blast. Sam Walters, Discover Magazine, 17 Mar. 2025 See All Example Sentences for deformation

Word History

First Known Use

1551, in the meaning defined at sense 3

Time Traveler
The first known use of deformation was in 1551

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Cite this Entry

“Deformation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deformation. Accessed 19 Apr. 2025.

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