Du"o*graph (?), n. [L. duo two + -graph.] (Photo-engraving) A picture printed from two half-tone plates made with the screen set at different angles, and usually printed in two shades of the same color or in black and one tint.

Du"o*graph (?), n. [L. duo two + -graph.] (Photo-engraving) A picture printed from two half-tone plates made with the screen set at different angles, and usually printed in two shades of the same color or in black and one tint.