limestone

noun

lime·​stone ˈlīm-ˌstōn How to pronounce limestone (audio)
: a rock that is formed chiefly by accumulation of organic remains (such as shells or coral), consists mainly of calcium carbonate, is extensively used in building, and yields lime when burned

Examples of limestone 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.
Gehry became an international star for his design of the Guggenheim Bilbao, an undulating titanium and limestone building that also cemented his architectural style. Elizabeth Fazzare, Architectural Digest, 5 Dec. 2025 Each year, rain alone dissolves millions of tons of underground limestone. Denise Hruby, Miami Herald, 1 Dec. 2025 The site is a popular underground diving spot located about 15 miles from Mount Gambier, a city in South Australia known for its limestone formations, landscapes and crater lakes. Charlotte Phillipp, PEOPLE, 1 Dec. 2025 The Gonzales County Jail Museum, a commanding three-story structure built of limestone and brick, sits just off the square. Lauren Jones, Southern Living, 30 Nov. 2025 See All Example Sentences for limestone

Word History

First Known Use

14th century, in the meaning defined above

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

Cite this Entry

“Limestone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/limestone. Accessed 12 Dec. 2025.

Kids Definition

limestone

noun
lime·​stone ˈlīm-ˌstōn How to pronounce limestone (audio)
: a rock that is formed chiefly from animal remains (as shells or coral), consists mainly of calcium carbonate, is used in building, and gives lime when burned

More from Merriam-Webster on limestone

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