The Collaborative International Dictionary of English v.0.48:

Missile \Mis"sile\, a. [L. missils, fr. mittere, missum, to
   cause to go, to send, to throw; cf. Lith. mesti to throw: cf.
   F. missile. Cf. Admit, Dismiss, Mass the religious
   service, Message, Mission.]
   Capable of being thrown; adapted for hurling or to be
   projected from the hand, or from any instrument or engine[2],
   so as to strike an object at a distance.
   [1913 Webster]

         We bend the bow, or wing the missile dart. --Pope.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Missile \Mis"sile\, n. [L. missile.]
   1. A weapon thrown or projected or intended to be projected,
      as a lance, an arrow, or a bullet.
      [1913 Webster]

   2. A rocket-propelled device designed to fly through the air
      and deliver a warhead of explosive materials to a target.
      [PJC]

   Note: Numerous types of rocket-propelled missile[2] are now
         used in modern warfare. Some types with names
         indicating their range or function are: antiaircraft
         missile; ballistic missile; cruise missile;
         antiballistic missile missile; air-to-air missile;
         air-to-ground missile; guided missile;
         intercontinental ballistic missile (IBM);
         intermediate range ballistic missile (IRBM);
         surface-to-air missile.

WordNet (r) 3.0 (2006):

missile
    n 1: a rocket carrying a warhead of conventional or nuclear
         explosives; may be ballistic or directed by remote control
    2: a weapon that is forcibly thrown or projected at a targets
       but is not self-propelled [syn: projectile, missile]

Moby Thesaurus II by Grady Ward, 1.0:

140 Moby Thesaurus words for "missile":
   AA target rocket, ABM, ASM, ATS, Asp, Asroc, Atlas, Atlas-Agena,
   Atlas-Centaur, Bullpup, Cajun, Corporal, Corvus, Crossbow, Dart,
   Deacon, Delta, Diamant, Dove, Falcon, Firebee, Genie, Hawk,
   Holy Moses, Hound Dog, ICBM, Irish confetti, Jupiter, Lacrosse,
   Lark, Loki, Loon, Mace, Matador, Navaho, Nike, Nike Ajax, Pershing,
   Petrel, Polaris, Poseidon, Quail, Ram, Rascal, Redeye, Redstone,
   Regulus I, SLAM, Saturn, Scout, Sentinel, Sergeant, Shillelagh,
   Sidewinder, Skybolt, Snark, Spaerobee, Sparrow, Subroc,
   Super Talos, Talos, Tartar, Terrier, Thor, Thor Able Star,
   Thor-Agena, Thor-Delta, Tiny Tim, Titan, V-2, Viking, WAC-Corporal,
   Wagtail, Zuni, anchor rocket, antiaircraft rocket,
   antiradar rocket, atom-rocket, atomic warhead, ball, ballistic,
   barrage rocket, bat bomb, bird, bola, bolt, boomerang, brickbat,
   chemical rocket, countermissile, demolition rocket, discus, ejecta,
   ejectamenta, ejective, fin-stabilized rocket, fireworks rocket,
   flare rocket, flying tank, guided missile, high-altitude rocket,
   homing rocket, incendiary rocket, ion rocket, jaculatory,
   line-throwing rocket, liquid-fuel rocket, nuclear warhead, payload,
   projectile, quoit, ram rocket, retro-float light, retro-rocket,
   rock, rocket, rockoon, signal rocket, skyrocket, smoke rocket,
   snake, solid-fuel rocket, space rocket, spin-stabilized rocket,
   spinner, stone, supersonic rocket, thermonuclear warhead,
   throw stick, throwing-stick, torpedo, trajectile,
   trajectory missile, transoceanic rocket, vernier, vernier rocket,
   waddy, war rocket, warhead, window rocket