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

These natural gems give a glimpse into the Floridan aquifer, a system of porous limestone that forms underground caves and rivers, pushing water up through vents and ultimately flowing into the faucets of millions of Sunshine State residents. —Patrick Connolly, The Orlando Sentinel, 7 Mar. 2026

The home features reclaimed antique European limestone floors and custom millwork. —Sara B. Hansen, Denver Post, 7 Mar. 2026

Much of its limestone facing was preserved for use in the new 30th Street bridge. —IndyStar, 6 Mar. 2026

Sandstone and limestone provided fissures and fractures where these hydrocarbons could sit, and caprock kept everything in place. —Stephanie Pappas, Scientific American, 6 Mar. 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