The plate is first covered with varnish, or some other ground capable of resisting the acid, and this is then scored or scratched with a needle, or similar instrument, so as to form the drawing; the plate is then covered with acid, which corrodes the metal in the lines thus laid bare.
Origin: D. Etsen, G. Atzen to feed, corrode, etch. MHG. Etzen, causative of ezzen to eat, G. Essen . See Eat.
(01 Mar 1998)
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