limestone

noun lime·stone \ ˈlīm-ˌstōn \
Updated on: 4 Dec 2017

Definition of limestone

: 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

Recent Examples of limestone from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'limestone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of limestone

14th century


LIMESTONE Defined for English Language Learners

limestone

noun

Definition of limestone for English Language Learners

  • : a type of white stone that is commonly used in building


LIMESTONE Defined for Kids

limestone

noun lime·stone \ ˈlīm-ˌstōn \

Definition of limestone for Students

: a rock formed chiefly from animal remains (as shells or coral) that is used in building and gives lime when burned


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