1. The medieval Russian state established by Scandinavian traders in the 9th century; the capital was first in Novgorod and then in Kiev
   - Kievan Rus'

1. A rare polyvalent metallic element of the platinum group; it is found associated with platinum
   - ruthenium, atomic number 44

Type of: country, land, metal, metallic element, state

Encyclopedia: Rus, Ostroda County