​MEIDERICH, a town of Germany, in the Prussian Rhine province, 21/2 m. by rail N.E. of Ruhrort, whose river harbour is in great part within its confines. Pop. (1905), 40,822. Iron and steel works, coal-mines, saw-mills, brick works, and machine shops furnish the principal occupations of the inhabitants. Meiderich, which is first mentioned in 874, was united with Duisburg in 1905.