A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.

synonyms: atomic number 27, Co.

Roget 438: blue etc. adj.; garter-blue; watchet^†.    [Pigments] ultramarine, smalt, cobalt, cyanogen [Chem]; Prussian blue, syenite blue^†; bice^†, indigo; zaffer^†.    lapis lazuli, sapphire, turquoise; indicolite^†.    blueness, bluishness; bloom.    ... show more

Dutch: kobalt
Polish: Co, kobalt