engraving
OAB Definition
intaglio printing process, and the resulting print, in which a metal plate, typically copper, is incised using a burin or graver. The engraved line holds the ink. For shading, lines are engraved close together or in a cross hatched pattern to produce tone.
ABT Definition
Intaglio print on paper incorporating impressions of a reverse design created on a printing plate, usually copper, into which the design has been incised (engraved) using burins or gravers.