Webster's Revised Unabridged Dictionary · 1913

Ca

Ca , noun

the chemical symbol for calcium, the fifth most abundant element in the earth's crust, having an atomic number of 20.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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