| − | ballistic missle: any one of the many forms of self powered projectiles that assumes a free falling trajectory during descent. some forms of ballistic are guided during there assent. Most ballistic missles are ground to ground based. | + | A '''ballistic missile''' is any one of the many forms of self powered projectiles that assumes a free falling trajectory during descent. Some forms of ballistic are guided during their assent. Most ballistic missiles are ground-to-ground based. |