found: Art & architecture thesaurus online, August 21, 2016(etchings (prints); variants: etching (print); hard-ground etchings (prints); note: Prints made from an etched printing plate, which is a metal plate on which a design is made by coating the plate with an acid-resistant substance, creating a design in the coating, and then exposing the plate to acid, which etches the plate where the metal is exposed. For designs incised directly into a copper plate using a burin or graver, use "engravings (prints).")
found: LCSH, August 14, 2016(Etching; UF Etchings [Former heading]; BT Art; Prints; RT Engraving; NT Aquatint; Cement clinkers-Etching; Crystals-Etching; Dry-point; Etching, Anonymous; Glass etching; Particle track etching; Plasma etching; Pyrography; Semiconductors-Etching; Stipple engraving)
found: Thesaurus for graphic materials, June 10, 2016(Etchings; BT Intaglio prints; NT Soft-ground etchings; RT Aquatints; Relief printed etchings)
found: The concise Oxford dictionary of art terms, Oxford art online, August 14, 2016(Etching; After engraving, the most important of the intaglio printmaking processes. In etching the design is bitten by acid on to the printing plate. In the printmaking process the printing plate is first covered with a layer of acid-resistant ground made of various waxes, gums, and resins. The ground is often darkened, usually with the smoke of lighted tapers; this aids the visibility of the process of drawing the design, which is done with an etching needle into the ground, thus clearing a path through to the printing plate, which is immersed in a bath of acid. The depth of the lines is determined by the strength of the acid and the length of time the plate is left therein. Plates can be wholly or partially rebitten by further immersions. Parts of the design can be selected for further bitings by covering over or stopping-out those sections of the design considered to have been sufficiently bitten already. Once biting has been completed, the acid-resistant ground is cleaned off and the plate is inked up and printed from. The more deeply bitten the lines the more distinctly they print.)
found: Benson, R. The printed picture, 2008:page 320 (etching: most commonly, an intaglio printing method in which the ink-bearing cells or lines of an image are formed by chemical action on a printing plate. In plate-making, etching is the removal of metal through chemical action, by an acid or some other solvent.)
