\Bal*lis"tic\, a.
1. Of or pertaining to the ballista, or to the art of hurling
   stones or missile weapons by means of an engine.

2. Pertaining to projection, or to a projectile.

{Ballistic pendulum}, an instrument consisting of a mass of
   wood or other material suspended as a pendulum, for
   measuring the force and velocity of projectiles by means
   of the arc through which their impact impels it.