Projectile

adj. capable of being fired or launched into the air; impelling, pushing forward, driving forward

n. piece of ammunition that is fired into the air (such as a missile, rocket, bullet, shell, etc.)

A projectile is any object propelled through space by the exertion of a force. In a general sense, even a football or baseball may be considered a projectile. It can cause damage (injury, property damage) to a person, animal or object it hits, depending on factors including size, shape, speed and hardness. Accordingly, in practice most projectiles are designed as weapons.
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Noun
1. a weapon that is thrown or projected
(synonym) missile
(hypernym) weapon, arm, weapon system
(hyponym) arrow
Adjective
1. impelling or impelled forward; "a projectile force"; "a projectile missile"
(similar) dynamic, dynamical

n. missile, projectile (such as a missile, rocket, bullet, shell, etc.)

(n.)
A part of mechanics which treats of the motion, range, time of flight, etc., of bodies thrown or driven through the air by an impelling force.
  

(n.)
A body projected, or impelled forward, by force; especially, a missile adapted to be shot from a firearm.
  

(a.)
Projecting or impelling forward; as, a projectile force.
  

(a.)
Caused or imparted by impulse or projection; impelled forward; as, projectile motion.