Definition, Meaning & Synonyms

limestone

noun

/ˈlaɪm.stoʊn/

Definition

A sedimentary rock composed primarily of calcium carbonate, often formed from the remains of marine organisms.

Examples

Limestone is commonly used in the production of glass.
Many historic buildings are made of limestone.
The cliffs of Dover are largely composed of white limestone.

Meaning

Limestone is a type of rock that is often used in construction, and it can also be found in cement and lime production. It is mainly made up of calcium carbonate, which can come from the shells of marine animals that have fossilized over millions of years.