Definition of


  1. (noun, substance) a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition

via WordNet, Princeton University

Synonyms of Cobalt

atomic number 27, co

Alternate forms of Cobalt

Hyponyms: cobalt 60

Hypernyms: metal, metallic element

Origin of the word Cobalt

  1. 1680s, from Ger. kobold "goblin," Harz Mountains silver miners' term for rock laced with arsenic and sulphur (so called because it made them ill), from M.H.G. kobe "hut, shed" + *holt "goblin," from hold "gracious, friendly," complimentary words used to avoid the wrath of troublesome beings. The metal was extracted from this rock. It was known to Par… more

via Online Etymology Dictionary, ©2001 Douglas Harper

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