#engraving

• Etcher — A visual artist, graphic designer, or engraver specializing in the etching technique (aqua fortis), an artistic process of printing from metal plates corroded with nitric acid. This specialist combines drawing mastery with the precision of industrial chemical reactions, controlling the matrix exposure time in the acid bath to achieve fine gradations of shadow, expressive lines, and textures of remarkable aesthetic depth.
• Aquatint — An artistic printmaking process on metal plates (copper or zinc) related to etching, used to achieve wash effects, granulated textures, and velvety modulated tones of gray or color; also, it designates the print impressed via this technique. This structural style relies on dusting a fine resin powder (rosin) onto the matrix, which, after heating and controlled acid corrosion, creates nuanced areas.
• Aquatint etcher — A visual artist, graphic designer, or engraver specializing in the use of the aquatint technique to create artworks on chemically etched metal plates. This specialist masters the art of tonal gradation, precisely controlling resin dust density and acid exposure time to achieve rich textures and fluid gradients on paper.
• Female aquatint etcher — The feminine form of the term 'acvatintist'; a female visual artist, graphic designer, or engraver specializing in the aquatint technique. This specialist combines drawing mastery with chemical precision, applying and melting a fine resin powder onto metal plates to achieve nuanced, velvety areas and rich gradients of gray or color on the printed paper support through acid corrosion.
• Aldegrever — The surname of a renowned German Renaissance painter, engraver, and goldsmith (Heinrich Aldegrever, 1502–1555), belonging to the group known as the 'Little Masters' (Kleinmeister). He is globally famous for his extremely small-scale copper engravings executed with astonishing, microscopic precision, deeply reflecting the artistic influences of Albrecht Dürer.
• Rotogravure — A high-quality printing process or engraving technique (rotogravure / photogravure) in which the printing elements are incised or etched below the surface of a copper plate or cylinder; an artistic or typographic work obtained through this process.
• Aqua fortis — An archaic, alchemical, and technical name for diluted nitric acid (HNO₃), an extremely corrosive and toxic liquid capable of dissolving most base metals, except for gold and platinum. In the past, this chemical solution was widely used in engraving workshops and by jewelry craftsmen for the controlled etching of metallic plates or for testing silver purity.
• Aqua fortis — A compound form spelled with a hyphen designating diluted nitric acid (HNO₃), an extremely corrosive and toxic liquid capable of dissolving most base metals. This compound was historically used in jewelry guilds and engraving workshops for the controlled etching of copper or zinc plates.
• Indentation — A trace, indentation, or mark left on a surface following the exertion of a physical pressure or compression force; the act of short and energetic pressing with a writing instrument, chisel, or mechanical device. In the art of engraving or drawing, it defines the line intensity resulting from the hand force applied onto the working medium.
• Etcher — A fine artist, engraver, or technician specialized in creating artworks, prints, and illustrations through the aquaforte etching technique; as an adjective, it describes the graphic style, the precision of lines, or the specific features of works executed via chemical corrosion on metal plates.
• Autolithography — A technial planographic printing process in which the artist draws or transfers the work directly onto the lithographic stone or onto a special autographic transfer paper (later transferred to stone), without resorting to the services of an intermediate engraver or technician. This graphic method ensures the faithful and unaltered preservation of the original stroke spontaneity, texture, and primary artistic vision of the creator within multiplied editions.
• Autotypy — A photomechanical printing process used to reproduce continuous-tone images, such as photographs, by using a halftone screen that breaks tones down into microscopic dots of varying sizes. The term also denotes the metallic printing plate produced via this technique or the final printed image, representing a revolutionary stage in the history of illustrated press.