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additional matter, other than a change in face value, applied to a finished postage stamp by printing, stamping, etc.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
A complete or partial disturbance of an isolated radioactive system by thermal, igneous, or tectonic activities which results in loss or gain of radioactive or radiogenic isotopes and, hence, a change in the radiometric age that will be given the disturbed system.
The development or superposition of metamorphic structures on original structures. Also known as imprint; metamorphic overprint; superprint.
To imprint over something that has been printed.
To apply a varnish or lacquer to printed matter from a type or litho process, by means of a brush, spray, or roller coating.
To print in a primary color over an existing color print to obtain a compound shade.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.