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Definition of calcium

calcium

/ˈkæl.si.əm/
cal · ci · um
Adjective:calcic
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calcium Lexical Profile

calcium Game Scores & Validity

• noun

1

A soft, silver-white alkaline earth metal with the atomic number 20 and chemical symbol Ca, which occurs naturally in limestone, chalk, and gypsum and is an essential dietary mineral for building strong bones, teeth, and shells in living organisms.

Example

"Dairy products and leafy green vegetables are rich sources of dietary calcium that help maintain bone density."

• Rhymes for calcium

• Nearby Words

calathea
calceolaria
calcify
calcium
calculable
calculate
calculated

Word Origin & Etymology

Coined in 1808 by English chemist Sir Humphry Davy from the Latin word 'calx' (genitive 'calcis'), meaning 'limestone' or 'lime', combined with the metallic element suffix '-ium'.

Cite this Entry

Wordmom. (2026). Definition of Calcium. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/calcium
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