1. A white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
   "Calcium is essential for strong bones and teeth";
   - Ca, atomic number 20

Derived forms: calciums

Type of: metal, metallic element

Part of: burnt lime, calcined lime, calcium oxide, calx, fluor, fluorite, fluorspar, fluxing lime, gypsum, lime, limestone, quicklime, unslaked lime

Encyclopedia: Calcium, combinations with vitamin D