Try Our Apps


90s Slang You Should Know


[lahym-stohn] /ˈlaɪmˌstoʊn/
a sedimentary rock consisting predominantly of calcium carbonate, varieties of which are formed from the skeletons of marine microorganisms and coral: used as a building stone and in the manufacture of lime.
Compare marble.
Origin of limestone
First recorded in 1515-25; lime1 + stone Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for limestone
Contemporary Examples
Historical Examples
  • Lime carbonate is the principal constituent of limestone and marble.

  • A thick layer of limestone formed the upper portion of the cliff.

  • Pendle, near Clitheroe, where the rock changes to limestone, is 1803.

    Lancashire Leo H. (Leo Hartley) Grindon
  • The other statue of limestone represents Nefer-shem-em seated.

    El Kab J.E. Quibell
  • In corroboration of this Stayman reports that it is not found growing native in clayey, limestone soils.

    The Grapes of New York U. P. Hedrick
  • “This limestone draws the heat,” said Smith, and he laid aside his coat.

    'Me-Smith' Caroline Lockhart
British Dictionary definitions for limestone


a sedimentary rock consisting mainly of calcium carbonate, deposited as the calcareous remains of marine animals or chemically precipitated from the sea: used as a building stone and in the manufacture of cement, lime, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for limestone

late 14c., from lime (n.1) + stone (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
limestone in Science
A sedimentary rock consisting primarily of calcium carbonate, often in the form of the minerals calcite or aragonite, and sometimes with magnesium carbonate in the form of dolomite. Minor amounts of silica, feldspar, pyrite, and clay may also be present. Limestone can occur in many colors but is usually white, gray, or black. It forms either through the accumulation and compaction of fossil shells or other calcium-carbonate based marine organisms, such as coral, or through the chemical precipitation of calcium carbonate out of sea water.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
limestone in Culture

limestone definition

Sedimentary rock formed primarily of calcium carbonate, often the skeletons of small marine organisms.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for limestone

Most English speakers likely know this word

Word Value for limestone

Scrabble Words With Friends

Nearby words for limestone