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| co·balt [ kṓ bàwlt ] |
noun |
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| Definition: |
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silvery white chemical element: a tough brittle silvery white metallic element. Source: iron, nickel, copper ores. Use: coloring ceramics, alloys.
Symbol Co
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| [Late 17th century. < German Kobalt, variant of Kobold "harmful goblin"; from miners' belief that cobalt ore was harmful to neighboring silver ores; originally a trademark] |
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