Source : Webster's Revised Unabridged Dictionary (1913)

Saracen \Sar"a*cen\, n. [L. Saracenus perhaps fr. Ar. sharqi,
   pl. sharqi[=i]n, Oriental, Eastern, fr. sharaqa to rise, said
   of the sun: cf. F. sarrasin. Cf. {Sarcenet}, {Sarrasin},
   {Sirocco}.]
   Anciently, an Arab; later, a Mussulman; in the Middle Ages,
   the common term among Christians in Europe for a Mohammedan
   hostile to the crusaders.

   {Saracens' consound} (Bot.), a kind of ragwort ({Senecio
      Saracenicus}), anciently used to heal wounds.

Source : WordNet®

Saracen
     n 1: (historically) a member of the nomadic people of the Syrian
          and Arabian deserts at the time of the Roman Empire
     2: (when used broadly) any Arab
     3: (historically) a Muslim who opposed the crusades