n.
Pronunciation: ' rü-t ə n
Function: noun
Etymology: German, from New Latin Ruta, genus that includes rue + German -in 1 -in
Date: 1857
: a yellow crystalline flavonol glycoside C 27 H 30 O 16 that occurs in various plants (as buckwheat and tobacco) and is used in medicine chiefly for strengthening capillary walls