Source : Webster's Revised Unabridged Dictionary (1913)

Duelist \Du"el*ist\, n. [F. duelliste.]
   One who fights in single combat. [Written also {duellist}.]

         A duelist . . . always values himself upon his courage,
         his sense of honor, his fidelity and friendship.
                                                  --Hume.

Source : WordNet®

duelist
     n : a person who fights duels [syn: {dueler}, {dueller}, {duellist}]