n. The act or process of producing a grain or a grained or fibrous appearance on the surface of a material; the appearance so produced. Specifically— The milling of a coin.n. In painting, the act or process of producing an imitation of the color and arrangement of the grain or fibers of wood; the appearance so producedn. The act of grinding lithographic stones together with fine sand to give a certain mat or grain to the surfacen. In leathermaking, the artificial markings on the surface of a skin to imitate morocco and other varieties of leathern. In bookbinding, the making of a rough or fine pebbled surface, or a wrinkled or striated surface, on leather used for binding books.n. In watch-making, a similar process applied to the surface of movements, etc.n. The fork of a tree.n. The method or practice of taking fish with grains. See grain.n. A cyprinoid fish, Leuciscus lancastriensis, found in England, especially in the Mersey and its tributaries.