Calcium

n.

1.

(Chem.) An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It is a member of the alkaline earth group of elements. Atomic weight 40. Symbol Ca. Calcium light an intense light produced by the incandescence of a stick or ball of lime in the flame of a combination of oxygen and hydrogen gases, or of oxygen and coal gas; - called also Drummond light and lime light.

Noun

1.

calcium - 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 Synonyms: atomic number 20, Ca

Pronunciation: (KAL-see-um):

A mineral that the body needs for strong bones and teeth. Calcium may form stones in the kidney.

atomic number 20, burnt lime, Ca, calcify, calcined lime, calcium ion, calcium oxide, calx, factor IV, fluor, fluorite, fluorspar, fluxing lime, gypsum, lime, limestone, metal, metallic element, quicklime, unslaked lime