- the curve described by a projectile, rocket, or the like in its flight.
- Geometry. a curve or surface that cuts all the curves or surfaces of a given system at a constant angle.
Origin of trajectory
- the path described by an object moving in air or space under the influence of such forces as thrust, wind resistance, and gravity, esp the curved path of a projectile
- geometry a curve that cuts a family of curves or surfaces at a constant angle
Word Origin and History for trajectile
1690s, from Modern Latin trajectoria, from fem. of trajectorius "of or pertaining to throwing across," from Latin traiectus "thrown over or across," past participle of traicere "throw across," from Latin trans- "across" (see trans-) + icere, combining form of iacere "to throw" (see jet (v.)). Used in Late Latin and Middle English to mean "a funnel."
- Physics The line or curve described by an object moving through space.
- Mathematics A curve or surface that passes through a given set of points or intersects a given series of curves or surfaces at a constant angle.