Source : Webster's Revised Unabridged Dictionary (1913)

Exhibitioner \Ex`hi*bi"tion*er\, n. (Eng. Univ.)
   One who has a pension or allowance granted for support.

         A youth who had as an exhibitioner from Christ's
         Hospital.                                --G. Eliot.

Source : WordNet®

exhibitioner
     n : someone who organizes an exhibit for others to see [syn: {exhibitor},
          {shower}]