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trajectory (noun) path traced by an object that is fired or thrown; course of events.
The trajectory of a stone is the curved path the stone traces as it rises and falls after it is thrown. The trajectory of a missile is the path traced by the missile when it is fired. A trajectory is also a course of events, that is, the chain of events that take place one after another.
- The building is on the trajectory of the missile and is sure to be hit if the missile is fired. The curved path of the missile is calculated to pass through the building.
- His meeting with her affected the trajectory of his career. It changed the course of his life. Desiring to live close to her, he gave up a good job and settled down in business.