- 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
Examples from the Web for trajectory
On his present trajectory, Putin shows no signs that he will conform to international legal and moral norms.Putin’s World Cup Picasso ‘Bribe’
December 1, 2014
The war back then was clearly becoming more sectarian and Islamic—the trajectory was obvious.Who Are These ‘Moderate’ Syrians Obama Wants to Pit Against ISIS?
September 15, 2014
Filat said Moldova would not be deterred from its Western trajectory.Is This Putin’s Next Target?
May 23, 2014
Little deviations in the mouse movement and trajectory were used to measure uncertainty.Study: Voters Want Their Female Politicos to Look Like Ladies
May 15, 2014
Cookbook author, ‘Extra’ host, jewelry line, ‘Basketball Wives’—we all know the trajectory for celebrity spouses and exes.How Elin Nordegren Became a Trophy Wife Role Model
May 12, 2014
It was just at the second when it reached the top of its trajectory and started to fall.High Adventure
James Norman Hall
What we retain of the movement of the mobile T are positions taken on its trajectory.Creative Evolution
But the rest of his mind tried to imagine such a trajectory.Talents, Incorporated
William Fitzgerald Jenkins
Some pitched into the hospital forty yards away, their trajectory just above us.The Secrets of a Kuttite
Edward O. Mousley
The greater the velocity, the flatter the trajectory becomes.Gunshot Roentgenograms
Clyde S. Ford
- 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 trajectory
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.