gyp·​sum | \ ˈjip-səm How to pronounce gypsum (audio) \

Definition of gypsum

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 : drywall

Examples of gypsum in a Sentence

Recent Examples on the Web

Take Mars—in 2011 NASA’s Opportunity rover stumbled on gypsum, the same mineral that Thomas found in the Dead Sea sediments. Shannon Hall, Scientific American, "The Not So Dead Sea: Traces of Ancient Bacteria Found in the Lake’s Sediments," 5 June 2019 That is, momentarily, at least, until your eyes focus back on the retail 'islands' boasting multiple-sized versions of actual gypsum dessert roses, a perfectly singular souvenir from this one-0f-a-kind shop. Whitney Robinson, ELLE Decor, "Is This the Most Beautiful Museum Gift Shop in the World?," 19 Apr. 2019 At the same time, the cost of home construction has risen rapidly, as have the prices of lumber, gypsum, construction labor, and land. Jeff Andrews, Curbed, "Why shrinking U.S. homes may be a boost to homebuyers," 29 Nov. 2018 Some of the uses include gypsum board, brick manufacturing and emulsions. Katherine Feser, Houston Chronicle, "Plaza Group acquires line of business from Truth Industries," 12 July 2018 The National Gypsum Company manufactures gypsum board products at a plant based in Waukegan. Yadira Sanchez Olson, Lake County News-Sun, "Waukegan Ray Bradbury statue fundraising halfway to $125,000 goal," 3 May 2018 The northern half is another story: an industrial expanse that includes Con Edison switchyards, a gypsum manufacturing facility and Entergy’s Indian Point Energy Center, with its domed nuclear reactors set on 240 riverfront acres. Susan Hodara, New York Times, "Buchanan, N.Y.: A Waterfront Village Braces for Big Changes," 27 June 2018 That cement is a complex mix derived from limestone, clay and gypsum. Kevin Davenport, idahostatesman, "How a 20-minute fire in the fatal I-84 crash ruined a concrete overpass," 22 June 2018 The suit faulted Barclay Friends and its architects for not ensuring that the gypsum board had been installed. Craig R. Mccoy,, "Lawsuit alleges 'agonizing and lonely deaths' in Barclay Friends fire," 15 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'gypsum.' 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 gypsum

14th century, in the meaning defined at sense 1

History and Etymology for gypsum

Latin, from Greek gypsos

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Statistics for gypsum

Last Updated

20 Jun 2019

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Time Traveler for gypsum

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

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English Language Learners Definition of gypsum

: a white mineral that is used to make plaster of paris


gyp·​sum | \ ˈjip-səm How to pronounce gypsum (audio) \

Medical Definition of gypsum

: 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

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More from Merriam-Webster on gypsum

Spanish Central: Translation of gypsum

Nglish: Translation of gypsum for Spanish Speakers

Britannica English: Translation of gypsum for Arabic Speakers Encyclopedia article about gypsum

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