calcium carbonate

== English == === Noun === calcium carbonate (uncountable) (inorganic chemistry) A colourless or white inorganic compound, CaCO3, occurring as chalk, limestone, marble etc. Reacts with acids to liberate carbon dioxide. ==== Synonyms ==== E170 (when used as a food coloring) carbonate of lime ==== Hyponyms ==== aragonite calcite vaterite ==== Translations ====