Definitions for "Four-color process"
The most common full-color printing process which uses color separation to produce one image for each of the four process colors (cyan, magenta, yellow, and black). Each color is then overprinted to reproduce the full color of the image.
Printing with yellow, magenta and cyan inks plus black, using screens to create full color images.
the four basic colors of ink (CYMK - Cyan, Yellow, Magenta, and Black) overlayed to make a wide variety of colors.