Glossary, Continued
P (Continued)
PRINTING— A process for reproducing copy.
PRINTING PLATE— Also called CUT. A flat piece of metal used on a
printing press that contains the image either engraved or etched
photographically on the surface.
PRISM— A transparent piece of crystal or optical glass having two plane
surfaces which are not parallel that separate white light into the visible colors
of the spectrum.
PROCESS COLOR REPRODUCTION— A combination of halftone plates,
usually red, yellow, blue, and black, which when printed in perfect register,
combine to produce a full-color reproduction.
PRODUCTION DEPARTMENT— The people responsible for purchasing
and maintaining schedules on printing, typography, engravings, bindings,
paper, and sometimes the purchase of art for an organization.
PROGRESSIVE PROOFS— Proofs showing the order of printing and shade
of ink for each required plate.
PROGRESSIVE DISCLOSURE— Systematically revealing information on a
partially obscured visual.
PROJECTION— The act or art of projecting lines and planes in orthographic
and perspective drawings.
PROJECTOR— A device containing a light and lenses for projecting an
image onto another surface.
PROJECTURAL— (1) An image projected onto another surface; (2) The
image so projected.
PROOF— A printed impression from a negative, a plate, or a body of type
submitted for examination or correction.
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