Color Separations: The process of preparing artwork, photographs, etc. for printing by separating it into the four primary printing colors (cyan, magenta, yellow, and black).
PMS: The abbreviated name of the Pantone Color Matching System.
Process Color Printing: Uses four inks (cyan, magenta, yellow, and black) to produce all other colors. Also called Full-Color Printing or Four-Color Printing.
Spot Color Printing: Refers to a method of specifying and printing colors in which each color is printed with its own ink.