• The production of patterns on a hard material, such as glass or metal, by selectively removing portions of its surface via a suitable means, such as the use of a chemical reaction or a beam. Also, the patterns so produced. Etching techniques include plasma, ion-beam, and laser etching, and those which utilize a chemical agent such as an acid.
  • A plate, circuit, or other object prepared through etching (1).

Not what you were looking for?