Pronunciation: (dOO'u-tōn", dyOO'-),[key] —adj. of two tones or colors.
—n. 1. a picture in two tones or colors.
2. Print. a. a method of printing an illustration either in a dark and a tinted shade of the same color or in two different colors from two plates of a monochrome original made from negatives at different screen angles.
b. an illustration printed by this method.