tra ‧ jec ‧ to ‧ ry /trəˈdʒekt ə ri/ BrE AmE noun ( plural trajectories ) [countable]
[ Date: 1600-1700 ; Language: Modern Latin ; Origin: trajectoria , from Latin trajectus , past participle of traicere 'to cause to cross' , from trans- ( ⇨ ↑ trans- ) + jacere 'to throw' ]
1 . technical the curved path of an object that has been fired or thrown through the air
2 . formal the events that happen during a period of time, which often lead to a particular aim or result:
The decision was certain to affect the trajectory of French politics for some time to come.