[poh-ster-uh-zey-shuh
n] 
| 1. | a process for producing a posterlike, high-contrast color reproduction from continuous-tone art by using separation negatives of various densities. |
| 2. | Photography. 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. |