Definition

a compound CaCO₃ found in nature as calcite and aragonite and in plant ashes, bones, and shells and used especially in making lime and Portland cement and as a gastric antacid

First Known Use

1868, in the meaning defined above

calcium carbonate

noun

a compound CaCO₃ found in nature as calcite and aragonite and in plant ashes, bones, and shells and used especially in making lime and Portland cement and as a gastric antacid

First Known Use

1868, in the meaning defined above