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Definition of: trajectory
(trə·jek′tər·ē) noun plural ·ries
1. The path described by an object or body moving in space.
2. The path of a projectile after leaving the muzzle of a gun.
3. Geom. a A curve which cuts a set of curves at the same angle. b A surface which passes through a given set of points. [<Med. L trajectorius <L trajectus. See TRAJECT.]
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