RETOUCHING The alteration of detail or removal of spots and blemishes
in a photographic print or negative.
RETOUCH VARNISH A light, colorless varnish sprayed on a dull, dried-
out area or an unfinished oil painting to restore the wet colors or values,
making it easier to mate with new paint.
REVERSE See FLOP. To turn over.
REVERSAL See REVERSE PRINT.
REVERSE PRINT A print where the black values of the originals are
REVISION BLOCK Space located in the upper-right comer of a drawing
to record any changes to the original drawing.
REVOLVED SECTION A drawing of the internal cross section of an
object superimposed on the basic drawing of the object.
ROMAN One of a group of alphabets or typefaces characterized by thick
and thin strokes and often with serifs.
ROSS BOARD An illustration board that comes in a variety of roughened
surfaces that divide crayon or brush strokes into broken textures suitable for
ROTATION A view in which the object is rotated or turned to reveal a
different plane or aspect.
ROUND BRUSH A cylindrical brush having an evenly tapered point.
RUBBER CEMENT Semitransparent glue consisting of gum rubber and a
petroleum or benzol solvent.
RUB-ONS Transfer sheets containing reprinted characters, symbols, and
numerals applied by burnishing over an acetate or paper back sheet.
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