/poh'steuhr euh zay"sheuhn/ , n. Print.
1. a process for producing a posterlike, high-contrast color reproduction from continuous-tone art by using separation negatives of various densities.
2. Photog. a printing process in which all tone values of a negative are reduced to a few and the tonal separation negatives produced are printed at different exposure levels on a high-contrast film so that a set of flat tones results.
[ 1945-50; POSTER 1 + -IZATION ]