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American Dictionary of the English Language

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Blue


BLUE, adjective blu. One of the seven colors, into which the rays of light divide themselves, when refracted through a glass prism. There are various shades of blue as sky-blue, or azure, Prussian blue indigo blue smalt blue etc.

Prussian blue a combination of the oxyd of iron with an acid called ferro-prussic.

BLU'E, verb transitive To make blue; to dye of a blue color; to make blue by heating, as metals etc.