noun, cal·ci·um often attributive \ˈkal-sē-əm\

: a substance that is found in most plants and animals and that is especially important in people for strong healthy bones

Full Definition of CALCIUM

:  a silver-white divalent metallic element of the alkaline-earth group occurring only in combination — see element table

Examples of CALCIUM

  1. Her doctor said she should eat more foods that are high in calcium, such as milk and cheese.

Origin of CALCIUM

New Latin, from Latin calc-, calx lime
First Known Use: 1808

Other Chemical Engineering Terms

alkali, cation, decant, hygroscopic, isotope, oxidize, slurry, solute, viscous
CALCIUM Defined for Kids


noun cal·ci·um \ˈkal-sē-əm\

Definition of CALCIUM for Kids

:  a silvery soft metallic chemical element that is essential for strong healthy bones
Medical Dictionary


noun , cal·ci·um often attrib \ˈkal-sē-əm\

Medical Definition of CALCIUM

:  a silver-white bivalent metallic element that is an alkaline earth metal, occurs only in combination, and is an essential constituent of most plants and animals—symbol Ca; see element table
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