1) Deutschland river 2) German name of German river 3) German river through Koln 4) German river, to a local 5) German river, to locals 6) It flows into the North Sea 7) Longest river in Deutschland 8) Rhine 9) Rhine river 10) River 11) River in Germany 12) River in Koln 13) River through Deutschland 
[molecule] Originally the rhubarb plant which contains rhein was used as a laxative. It was believed that rhein along with other anthraquinone glycosides imparted this activity. Rhein has been reevaluated as an antibacterial agent against Staphylococcus aureus in 2008. Synergy or partial synergy has been demonstrated between rhein and the a...
• (n.) Chrysophanic acid.
German spelling of Rhine, the well-known wine river which runs northward along Germany's western boundary.
Rhe'in noun (Chemistry) Chrysophanic acid. 
German name for the Rhine, a European river