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TAKE THE QUIZcobalt oxide
noun
: an oxide of cobalt: such as
a
: the monoxide CoO obtained usually as a grayish powder
called also cobaltous oxide
b
: a gray to blue-black powder containing cobalt monoxide and higher oxides (as tricobalt tetroxide Co3O4) and used chiefly in coloring glass and ceramic ware blue
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Merriam-Webster unabridged
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- The business’s new computer system proved not to be a panacea.


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