Glossary

The PRINTING United Alliance Glossary serves as an excellent industry terminology resource. It is the language by which we all communicate. Without it, universal understanding would be impossible.

To keep our constituents well informed about changes to the increasingly complex industry terminology, PRINTING United Alliance has developed this glossary of terms. Definitions are for general reference only. Usage may vary between companies, individuals, or national and country customs. The information presented is as accurate as the authors and editors can ascertain and PRINTING United Alliance assumes no responsibility for the use of information presented herein.
  • Abscissa axis
    The x coordinate.
  • Axis
    (1) A straight line, real or imaginary that passes through a body and about which the body may or actually does rotate; (2) Geometric guidelines used to place a coordinate that determines knife or tool paths for plotters and routers.
  • Lens axis
    An imaginary line drawn through the center of a lens from the front of the lens through the rear element.
  • Optical axis
    An imaginary line that runs through the focus and center of the lens of a camera.
  • Principal axis
    The axis of maximum and minimum normal stress.