A union of German states for uniformity of customs, established in 1819. It continued until the unification of the German empire, including Prussia, Saxony, Bavaria, Wurtemberg, Baden, Hesse-Cassel, Brunswick, and Mecklenburg-Strelitz, and all intermediate principalities. It was subsequently superseded by the German empire; and the federal council of the empire took the place of that of the Zoll-Verein. Wharton.