: 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
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Identifying an abbot Rodwell found the bones were still jumbled together inside the coffin, which was hewn from a single block of limestone and measured about 7 feet (2 meters) long, with walls about 4 inches (10 centimeters) thick on average. — Mindy Weisberger, CNN Money, 2 Nov. 2026 But apparently, developers never thought that building on a porous foundation of sand and limestone would be an issue. — Sun Sentinel Editorial Board, Sun Sentinel, 30 Oct. 2026 Inside, the living room is anchored by an intricate 18th-century limestone fireplace from a chateau in France’s Loire Valley. — Tori Latham, Robb Report, 29 Oct. 2026 The home was built using yellow limestone and lumber salvaged from a historic barn. — Lauryn Azu, Chicago Tribune, 27 Oct. 2026 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 5 Nov. 2026.

Kids Definition

: 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

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