Definition

To make blue; to dye of a blue color; to make blue by heating, as metals, etc.

Other Definitions

This word also has 2 other definitions:

BLUE (adjective)

1. Having the color of the clear sky, or a hue resembling it, whether lighter or darker; as, the deep, blue sea; as blue as a sapphire; blue violets. ...

BLUE (noun)

1. One of the seven colors into which the rays of light divide themselves, when refracted through a glass prism; the color of the clear sky, or a colo...