duograph

1 definition found

duograph - Collaborative International Dictionary of English v.0.48 :

  Duograph \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.
     [Webster 1913 Suppl.]