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

Another reason to visit is the dramatic landscape, especially at this lodge, whose 25 suites trace the curve of the island’s limestone cliffs. —Jennifer Kester, Forbes.com, 10 Sep. 2025

The sand, which makes up over 70% of glass, could come from a faraway riverbed, lakeshore or inland limestone outcrop. —Aki Ishida, The Conversation, 10 Sep. 2025

Floating between Sicily and North Africa, this archipelago nation—about twice the size of Brooklyn—is known for its 300 days of sunshine, crystal-blue waters, megalithic temples, and handsome limestone architecture. —Denny Lee, Travel + Leisure, 9 Sep. 2025

Even today, thousands of its physical records are stored in former limestone mines in Missouri and Pennsylvania. —Eli Hager, ProPublica, 8 Sep. 2025

Word History

First Known Use

14th century, in the meaning defined above

Phrases Containing limestone

• nummulitic limestone

Rhymes for limestone

• acetone
• anglophone
• baritone
• bourguignon
• buspirone
• chaperon
• chaperone
• cobblestone
• collarbone
• cornerstone
• cortisone
• dictaphone

Kids 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