properly signifies lime, but is also used by chemists and physicians for a fine powder remaining after the calcination or corrosion of metals and other mineral substances. See Chemistry.

CALX antimonii. See Chemistry, Of antimony.

CALX nativa, in natural history, a kind of marly earth, of a dead whitish colour, which, if thrown into water, makes a considerable bubbling and hissing noise, and has, without previous burning, the quality of making a cement like lime, or plaster of Paris.

CALX viva, or quick-lime, that whereas no water has been cast, in contradiction to lime which has been slaked by pouring water on it. See Chemistry, Of lime.

in anatomy. See CALCANEUM.