Ballistics is the science or art that deals with the motion, behavior, appearance, or modification of missiles or other vehicles acted upon by propellants, wind, gravity, temperature, or any other modifying substance, condition, or force.

BALLISTIC MISSILE

A ballistic missile is any missile that does not rely upon aerodynamic surfaces to produce lift and consequently follows a ballistic trajectory when thrust is terminated.

BALLISTIC TRAJECTORY

Ballistic trajectory is the path that is traced after the propulsive force is terminated and the body is acted upon only by gravity and aerodynamic drag.