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Meaning of etching

etch•ing

Pronunciation: (ech'ing), [key]
— n.
  1. the act or process of making designs or pictures on a metal plate, glass, etc., by the corrosive action of an acid instead of by a burin.
  2. an impression, as on paper, taken from an etched plate.
  3. the design so produced.
  4. a metal plate bearing such a design.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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