gypsum

noun

gyp·​sum ˈjip-səm How to pronounce gypsum (audio)
1
: a widely distributed mineral consisting of hydrous calcium sulfate that is used especially as a soil amendment and in making plaster of paris
2

Examples of gypsum 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.
Plaster is a building material, usually made from lime, gypsum, or cement that is mixed with water and applied to surfaces to create a smooth, slightly textured yet durable surface. Lauren Bengtson, Better Homes & Gardens, 15 May 2025 The United States imports 85% of its softwood lumber from Canada and 70% of its gypsum, which is used in drywall, from Mexico. Nick Rosenberger, Idaho Statesman, 21 Apr. 2025 An extended trade war would prove costly for specific sectors, including U.S. automakers (who rely on supply chains that crisscross North American borders), homebuilders (who use Canadian lumber and gypsum) and agriculture (fertilizer). Neil Irwin, Axios, 3 Feb. 2025 Plaster of Paris, gypsum, and other white, powdery fillers made their way into milk and flour for color and texture. Lauren Leffer, Popular Science, 1 May 2025 See All Example Sentences for gypsum

Word History

Etymology

Latin, from Greek gypsos

First Known Use

14th century, in the meaning defined at sense 1

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

Browse Nearby Words

Cite this Entry

“Gypsum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gypsum. Accessed 28 May. 2025.

Kids Definition

gypsum

noun
gyp·​sum ˈjip-səm How to pronounce gypsum (audio)
: a colorless mineral that consists of calcium sulfate occurring in crystals or masses and that is used especially as a soil improver and in making plaster of paris

Medical Definition

gypsum

noun
gyp·​sum ˈjip-səm How to pronounce gypsum (audio)
: a widely distributed mineral CaSO4·2H2O consisting of hydrous calcium sulfate that is used especially as a soil amendment and in making plaster of paris

More from Merriam-Webster on gypsum

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!