a white, crystalline, water-insoluble, tasteless powder, CaCO3, occurring in nature in various forms, as calcite, chalk, and limestone: used chiefly in dentifrices and polishes and in the manufacture of lime and cement.
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Origin of calcium carbonate
First recorded in 1870–75
Words nearby calcium carbonate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for calcium carbonate
a white crystalline salt occurring in limestone, chalk, marble, calcite, coral, and pearl: used in the production of lime and cement. Formula: CaCO 3
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
Medical definitions for calcium carbonate
A calcium salt used as a dietary supplement and as an antacid.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for calcium carbonate
A white or colorless crystalline compound occurring naturally in chalk, limestone, and marble and in the minerals calcite and aragonite. It is used to make toothpaste, white paint, and cleaning powder. Chemical formula: CaCO3.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.