Source : Webster's Revised Unabridged Dictionary (1913)

Tsarina \Tsa*ri"na\, Tsaritsa \Tsa*rit"sa\, n. [Russ. tsaritsa.
   Cf. {Czarina}.]
   The title of the empress of Russia. See {Czarina}.

Source : WordNet®

tsarina
     n : the wife or widow of a czar [syn: {czarina}, {tzarina}, {czaritza},
          {tsaritsa}]