/trəˈdʒektəri/
tra·jec·tory
BrE /trəˈdʒektəri/
NAmE /trəˈdʒektəri/
(
plural
tra·jec·tories) (specialist)
the curved path of sth that has been fired, hit or thrown into the air
a missile’s trajectory
(figurative) My career seemed to be on a downward trajectory.