An intaglio process by which the image is corroded into the metal plate by the action of acid. With a traditional line etching, the metal plate is first coated with an acid-resist ground, then drawn on with a sharp tool to remove areas (lines) of ground and expose the plate. The plate is placed in an acid bath and left until the exposed metal is sufficiently bitten . Finally the ground is removed and the plate is inked and printed as an engraving. Etching also refers to the printed impression.
