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.
On the mosaic’s surface, experts discovered natural wax and gypsum, which were probably left over from previous conservation efforts. Sonja Anderson, Smithsonian Magazine, 22 Jan. 2025 Experts place the coffin between 43 A.D. and 410 A.D. but have not determined the exact year it was made, nor the reason gypsum was inside the coffin. Andrea Margolis, Fox News, 16 Jan. 2025 These marble-sized balls are then crushed and mixed with additives like gypsum to create the cement. Lara Williams, The Mercury News, 5 Nov. 2024 During the Cold War, Stalin, facing a champagne ban, ordered the establishment of a high-end facility there, in a former gypsum mine more than two hundred feet underground. Boris Fishman, The New Yorker, 25 Nov. 2024 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

Dictionary Entries Near gypsum

Cite this Entry

“Gypsum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gypsum. Accessed 27 Jan. 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

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