The Collaborative International Dictionary of English v.0.48:

Projectile \Pro*ject"ile\, a. [Cf. F. projectile.]
   [1913 Webster]
   1. Projecting or impelling forward; as, a projectile force.
      [1913 Webster]

   2. Caused or imparted by impulse or projection; impelled
      forward; as, projectile motion. --Arbuthnot.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Projectile \Pro*ject"ile\, n. [Cf. F. projectile.]
   [1913 Webster]
   1. A body projected, or impelled forward, by force;
      especially, a missile adapted to be shot from a firearm.
      [1913 Webster]

   2. pl. (Mech.) 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.
      [1913 Webster]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

dynamical \dynamical\ adj. [Narrower terms: can-do; driving;
   energizing, energising, kinetic; forceful, slashing,
   vigorous; projectile; propellant, propellent, propelling,
   propulsive; renascent, resurgent; self-propelled,
   self-propelling; high-octane, high-powered, high-power,
   high-voltage]
   [WordNet 1.5] Dynamically \Dy*nam"ic*al*ly\, adv.
   In accordance with the principles of dynamics or moving
   forces. --J. Peile.
   [1913 Webster]

WordNet (r) 3.0 (2006):

projectile
    adj 1: impelling or impelled forward; "a projectile force"; "a
           projectile missile"
    n 1: a weapon that is forcibly thrown or projected at a targets
         but is not self-propelled [syn: projectile, missile]
    2: any vehicle self-propelled by a rocket engine [syn: rocket,
       projectile]

Moby Thesaurus II by Grady Ward, 1.0:

25 Moby Thesaurus words for "projectile":
   Irish confetti, ball, ballistic, bola, bolt, boomerang, brickbat,
   bullet, countermissile, discus, ejecta, ejectamenta, ejective,
   jaculatory, missile, quoit, rock, rocket, shell, stone,
   throw stick, throwing-stick, torpedo, trajectile, waddy



The Devil's Dictionary (1881-1906):

PROJECTILE, n.  The final arbiter in international disputes.  Formerly
these disputes were settled by physical contact of the disputants,
with such simple arguments as the rudimentary logic of the times could
supply -- the sword, the spear, and so forth.  With the growth of
prudence in military affairs the projectile came more and more into
favor, and is now held in high esteem by the most courageous.  Its
capital defect is that it requires personal attendance at the point of
propulsion.