in Chemistry, an operation by which metallic substances are reduced into small grains, or roundish particles; the use of which is, to facilitate their combination with other substances.—This operation is very simple; it consists only in pouring a melted metal slowly into a vessel filled with water, which is in the mean time to be agitated with a broom. Lead or tin may be granulated by pouring them when melted into a box; the internal surface of which is to be rubbed with powdered chalk, and the box strongly shaken till the lead has become solid. Metals are granulated, because their ductility renders them incapable of being pounded, and because filing is long and tedious, and might render the metal impure by any admixture of iron from the file.