Projectile

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Dictionary Meaning and Definition on 'Projectile'

Projectile Meaning and Definition from WordNet (r) 2.0
    projectile adj : impelling or impelled forward; "a projectile force"; "a projectile missile" n : a weapon that is thrown or projected [syn: missile]
Projectile Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Projectile \Pro*ject"ile\, a. [Cf. F. projectile.]
  1. Projecting or impelling forward; as, a projectile force.
  2. Caused or imparted by impulse or projection; impelled forward; as, projectile motion. --Arbuthnot.
Projectile Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Projectile \Pro*ject"ile\, n. [Cf. F. projectile.]
  1. A body projected, or impelled forward, by force; especially, a missile adapted to be shot from a firearm.
  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.
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Wikipedia Meaning and Definition on 'Projectile'


A projectile is any object projected into space (empty or not) by the exertion of a force. Although a thrown baseball is technically a projectile too, the term more often refers to a weapon.

For details of the mathematics surrounding projectile trajectory, see equations of motion.

Arrows, darts, spears, and similar weapons are fired using pure mechanical force applied by another object; apart from throwing without tools, mechanisms include the catapult, slingshot, and bow.

Other weapons use the compression or expansion of gases as their motive force.

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