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calcium British & World English

The chemical element of atomic number 20, a soft grey metal

calcium New Oxford Dictionary for Writers & Editors

chemical element of atomic number 20

Ca in calcium British & World English

The chemical element of atomic number 20, a soft grey metal

calcium oxide British & World English

A white caustic alkaline solid, commonly produced in the form of quicklime

calcium antagonist British & World English

A compound of a type that reduces the influx of calcium into the cells of cardiac and smooth muscle, reducing the strength of contractions. Drugs of this kind are used to treat angina and high blood pressure

calcium carbonate British & World English

A white insoluble solid occurring naturally as chalk, limestone, marble, and calcite, and forming mollusc shells and stony corals

calcium chloride British & World English

A white crystalline salt used to de-ice roads and as a drying agent

calcium hydroxide British & World English

A soluble white crystalline solid commonly produced in the form of slaked lime