A projectile (of the Latin projectus : jeté ahead) is a body launched or projected to reach a Cible. In the field of the Ballistic , it acts more particularly of a body projected by a Arme.

A projectile can come from a Arme of jet (arrow) or from a Firearm (ball, Obus…), or to be launched with naked Hand like a stone, a stone, a rock, a paving stone, a scraping-knife, a hammer or a lance.