descale

verb

de·​scale (ˌ)dē-ˈskāl How to pronounce descale (audio)
descaled; descaling; descales

transitive verb

1
: to remove a coating, layer, or incrustation from : to free from scale (see scale entry 3 sense 3)
To descale the kettle, fill it with equal parts water and vinegar and let it soak for an hour before making sure it's been properly rinsed out.Sarra Gray
2
: to remove scales (see scale entry 3 sense 1a) from
You can, of course, ask the fishmonger to gut and descale the fish for you.Hugh Fearnley-Whittingstall

Examples of descale in a Sentence

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.
High-performing laundry detergents that contain citrates (sodium salt chemicals that serve as water softeners), cleaning and descaling agents, and pH regulators will give the best cleaning results. Mary Marlowe Leverette, Southern Living, 23 June 2026 Here are the best humidifier descaling tricks to keep this appliance in tip-top shape. Terri Williams, Architectural Digest, 16 Apr. 2026 Learn how to clean and descale a showerhead in four easy steps. Mary Marlowe Leverette, The Spruce, 9 Apr. 2026 Experts recommend descaling every one to three months, depending on water hardness, and suggest preventative measures like occasional hot cycles, using the correct detergent amount, and regular wiping of machine parts. Madeline Buiano, Martha Stewart, 14 Mar. 2026 Not far away, a group of shirtless fishermen were chopping and descaling their catch around a table. The New York Times News Service Syndicate, San Diego Union-Tribune, 19 Aug. 2025

Word History

Etymology

de- + scale entry 3

First Known Use

1875, in the meaning defined at sense 2

Time Traveler
The first known use of descale was in 1875

Browse Nearby Words

Cite this Entry

“Descale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/descale. Accessed 5 Jul. 2026.

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