Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for calcium from the 1913 edition of Webster's Revised Unabridged Dictionary. Define calcium using one of the most comprehensive free online dictionaries on the web.

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calcium
Part of Speech: noun
Results: 1
1. 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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