Source : Webster's Revised Unabridged Dictionary (1913)

Ampul \Am"pul\, n. [AS. ampella, ampolla, L. ampulla: cf. OF.
   ampolle, F. ampoule.]
   Same as {Ampulla, 2.}

Source : WordNet®

ampul
     n : a small bottle that contains a drug (especially a sealed
         sterile container for injection by needle) [syn: {phial},
          {vial}, {ampule}, {ampoule}]