Trajectory definition: the curve described by a projectile, rocket, or the like in its flight.. See examples of TRAJECTORY used in a sentence. Definition of trajectory in the Definitions.net dictionary. Meaning of trajectory. What does trajectory mean? Information and translations of trajectory in the most comprehensive dictionary definitions resource on the web. Definition of trajectory noun from the Oxford Advanced Learner's Dictionary. the curved path of something that has been fired, hit or thrown into the air. (figurative) My career seemed to be on a downward trajectory. The meaning of TRAJECTORY is the curve that a body (such as a planet or comet in its orbit or a rocket) describes in space. How to use trajectory in a sentence.
