Longman Dictionary of Contemporary English homepage

Topic: ELEMENTS

Date: 1800-1900
Language: Modern Latin
Origin: Latin calx; CHALK1

calcium

 noun
     
cal‧ci‧um S3 [uncountable]
HCE a silver-white metal that helps to form teeth, bones, and chalk. It is a chemical element: symbol Ca
Definition of calcium from the Longman Dictionary of Contemporary English within
the topic ELEMENTS
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