- a white crystalline salt occurring in limestone, chalk, marble, calcite, coral, and pearl: used in the production of lime and cement. Formula: CaCO3
WordReference Random House Unabridged Dictionary of American English © 2026
cal′cium car′bonate,
- Chemistrya 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.
- 1870–75
Collins Concise English Dictionary © HarperCollins Publishers::
calcium carbonate n
'calcium carbonate' also found in these entries (note: many are not synonyms or translations):
calcareous
- calciferous
- calcite
- calcium
- chalk
- fur
- limekiln
- limestone
- limewater
- marlite
- mother-of-pearl
- otolith
- pearl
- stalactite
- stalagmite
- travertine
- tufa
- aragonite
- calcify
- calcium chloride
- caliche
- chilognath
- cystolith
- dedolomitize
- dripstone
- flowstone
- Holmes light
- lime
- lysocline
- marl
- prismatic layer
- whiting
- sandstone
- septarium