Wordnet 3.0
NOUN (1)
1. 
 the vast geographical region of Europe and Asia that was controlled by the Mongols in the 13th and 14th centuries; 
- Example: "under Genghis Khan Tartary extended as far east as the Pacific Ocean"[syn: Tartary, Tatary]
The Collaborative International Dictionary of English v.0.48:
Tartary \Tar"ta*ry\, n.
   Tartarus. [Obs.] --Spenser.
   [1913 Webster]
   [1913 Webster]
WordNet (r) 3.0 (2006):
Tartary
    n 1: the vast geographical region of Europe and Asia that was
         controlled by the Mongols in the 13th and 14th centuries;
         "under Genghis Khan Tartary extended as far east as the
         Pacific Ocean" [syn: Tartary, Tatary]