Ballistic \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.

Source: Webster's Revised Unabridged Dictionary (1913)