[lahym-stohn] Pronunciation Key | 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. |
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
| lime·stone
(līm'stōn') Pronunciation Key
n. A common sedimentary rock consisting mostly of calcium carbonate, CaCO3, used as a building stone and in the manufacture of lime, carbon dioxide, and cement. |
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
| limestone | |
noun | |
| a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals |
| limestone
(līm'stōn') Pronunciation Key
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. |
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
limestone
Sedimentary rock formed primarily of calcium carbonate, often the skeletons of small marine organisms.
[Chapter:] Earth Sciences
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Limestone Sq, KY Zip code(s): 41056
Limestone County, AL (county, FIPS 83) Location: 34.81032 N, 86.98143 W
Population (1990): 54135 (21455 housing units)
Area: 1471.4 sq km (land), 101.1 sq km (water)
Limestone County, TX (county, FIPS 293) Location: 31.54477 N, 96.58303 W
Population (1990): 20946 (9922 housing units)
Area: 2354.0 sq km (land), 63.0 sq km (water)
Limestone, ME (CDP, FIPS 39265) Location: 46.91184 N, 67.83089 W
Population (1990): 1245 (540 housing units)
Area: 6.8 sq km (land), 0.0 sq km (water)
Zip code(s): 04750
Limestone, MI Zip code(s): 49816
Limestone, NY (village, FIPS 42378) Location: 42.02401 N, 78.63098 W
Population (1990): 459 (189 housing units)
Area: 4.2 sq km (land), 0.0 sq km (water)
Zip code(s): 14753
Limestone, PA Zip code(s): 16234
Limestone
Lime"stone`\ (l[imac]m"st[=o]n`), n. A rock consisting chiefly of calcium carbonate or carbonate of lime. It sometimes contains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble.
Copyright © 2008, Dictionary.com, LLC. All rights reserved.