/dooh"euh tohn', dyooh"-/ , adj.
1. of two tones or colors.
n.
2. a picture in two tones or colors.
3. 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.
[ 1905-10; DUO- + TONE ]