Source : Webster's Revised Unabridged Dictionary (1913)

Ballistite \Bal"lis*tite\, n. [See {Ballista}.] (Chem.)
   A smokeless powder containing equal parts of soluble
   nitrocellulose and nitroglycerin.

Source : WordNet®

Ballistite
     n : an explosive (trade name Ballistite) that burns with
         relatively little smoke; contains pyrocellulose and is
         used as a propellant [syn: {smokeless powder}]