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

The park's remote and rugged location, its steep limestone canyon walls and crystal clear starry night views attract visitors from around the world. — ABC News, 14 Sep. 2026

The park’s remote and rugged location, its steep limestone canyon walls and crystal clear starry night views attract visitors from around the world. — Rebecca Santana, Los Angeles Times, 14 Sep. 2026

With a 65-percent limestone terrain, Greece has the second largest number of caves in the world. — Jennifer Tzeses, Condé Nast Traveler, 10 Sep. 2026

Dolostone is related to limestone, and can form as groundwater rich in magnesium passes through limestone or lime mud and replaces the calcium ions in the limestone with magnesium, the department explained. — Adam Harrington, CBS News, 9 Sep. 2026

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