Glossary, Continued
C (Continued)
CASEIN— A curd of milk and lime used as a binder in tempura paint.
CAVALIER PROJECTION— A form of oblique drawing with the receding
lines drawn full scale at 45° to the orthographic front view.
CD– See COMPACT DISK.
CD ROM– See COMPACT DISK READ—ONLY MEMORY.
CEL— Acetate overlays used in television art and animation.
CEL LEVEL— The number of eels placed one over another on the same
background and photographed at the same time.
CENTER DISK— A drafting instrument that protects the paper surface from
damage when drawing multiple concentric circles with a compass.
CENTER OF INTEREST— The part of the picture that attracts the most
attention.
CENTER LINE— Lines that indicate the center consisting of alternating long
and short dashed evenly spaced.
CENTER SPREAD— Two facing pages formed by one folded sheet of
paper.
CENTRAL PROCESSING UNIT— Also called CPU. The integrated circuit
(IC) chip that controls the speed and processing power of the computer.
CHAIN or CIVIL ENGINEER’S SCALE— A scale, generally triangular,
divided in decimal units or units of 10.
CHARACTER— Any letter, number, punctuation mark, or space in printed
matter.
Continued on next page
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