Source : Webster's Revised Unabridged Dictionary (1913)

Pickpocket \Pick"pock`et\, n.
   One who steals purses or other articles from pockets.
   --Bentley.

Source : WordNet®

pickpocket
     n : a thief who steals from the pockets or purses of others in
         public places [syn: {cutpurse}, {dip}]