calcium carbonate
noun
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.
Origin of calcium carbonate
First recorded in 1870–75
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calcium carbonate
noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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calcium carbonate
The American Heritage® Science Dictionary
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