Calcium n. : 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.

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Taxonomy
calcium, calcium carbonate, vitamin D, calcium supplements, bones, mineral, food, calcium supplementation, absorbed, absorption, fractures, PMID, mass, Calcium compounds, prevention, salt, calcium salts, supplement.

Defination from the web:
Hyperlinked article on the element with notable characteristics, applications, compounds, and isotopes.