[Gk.] A hard, fusible, and brittle metal. Potassium chromate and lead chromate (chrome red) are used in dyeing and calico-printing. Chrome yellow is used by painters. Pure chromium is the most difficult to fuse of all the metals. Its compounds are much used in the arts, in painting and coloring. It forms four compounds with oxygen, and its chief ore is chrome ironstone, found in America, Sweden, and the Shetlands.