Tokushima (tōkōˈshĭmä) [key], city (1990 pop. 263,356), capital of Tokushima prefecture, E Shikoku, Japan. It is a port and a center for the manufacture of chemicals, cotton fabrics, and wood products. Tokushima prefecture (1990 pop. 837,226), 1,600 sq mi (4,144 sq km), a mountainous region, rises to 6,414 ft (1,955 m) at Mt. Tsurugi. There are many farms, and raw silk, charcoal, and processed foods are produced.