limestone
noun
lime·stone
ˈlīm-ˌstōn 
: 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
Interestingly, the concrete differed from standard Roman concrete, as these ancient builders combined tuff, basalt, and limestone, Archaeology News reports.
—
Maria Mocerino, Interesting Engineering, 14 Feb. 2026
Back inside, a casual dining area connects to a sleek kitchen outfitted with Jerusalem limestone floors, Brazilian granite countertops, a breakfast bar, and a walk-in pantry.
—Wendy Bowman, Robb Report, 14 Feb. 2026
The rest come as the heat converts limestone (calcium carbonate) to lime (calcium oxide), releasing carbon dioxide.
—Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026
The 100-acre limestone cavern has more than 17 miles of underground passageways and is home to Mega Zip Lines tour, Mega Quest ropes course, Mega Walking tours and Mega Tram tours.
—Kirby Adams, Louisville Courier Journal, 12 Feb. 2026
See All Example Sentences for limestone
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Maria Mocerino, Interesting Engineering, 14 Feb. 2026
Back inside, a casual dining area connects to a sleek kitchen outfitted with Jerusalem limestone floors, Brazilian granite countertops, a breakfast bar, and a walk-in pantry.
—Wendy Bowman, Robb Report, 14 Feb. 2026
The rest come as the heat converts limestone (calcium carbonate) to lime (calcium oxide), releasing carbon dioxide.
—Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026
The 100-acre limestone cavern has more than 17 miles of underground passageways and is home to Mega Zip Lines tour, Mega Quest ropes course, Mega Walking tours and Mega Tram tours.
—Kirby Adams, Louisville Courier Journal, 12 Feb. 2026
See All Example Sentences for limestone
Cite this Entry
“Limestone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/limestone. Accessed 15 Feb. 2026.
Copy CitationKids Definition
limestone
noun
lime·stone
ˈlīm-ˌstōn
: 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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