Definition of trajectory
1 : the curve that a body (such as a planet or comet in its orbit or a rocket) describes in space
2 : a path, progression, or line of development resembling a physical trajectory an upward career trajectory
Examples of trajectory in a Sentence
the trajectory of the missile
Recent Examples of trajectory from the Web
Richards spoke openly about her own trajectory, and reflected on the professional challenges particular to women.
On Wednesday, health care developments continued to unfold at a breakneck pace, and with a zigzagging trajectory, when the Senate Budget Committee posted on its website yet another bill.
After all, the case that Trump is making depends on the upward trajectory of that line of spending.
Sounds like a pretty good prediction for the post-Trumpcare trajectory of the health-care system.
Orgeron likes the trajectory of his program after losing the interim tag late last season.
Apparently the British voter saw the increasingly non-democratic trajectory of the European Union as a future challenge to its own independence.
This test comes after a similar one on May 14th; the missile used then, also on a lofted trajectory, was thought to have a potential range of 4,500km.
On a more conventional trajectory, the same missile would have a range of about 6,700km.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trajectory.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
Formed with part of the prefix trans-, "across", trajectory means a "hurling across". By calculating the effect of gravity and other forces, the trajectory of an object launched into space at a known speed can be computed precisely. Missiles stand a chance of hitting their target only if their trajectory has been plotted accurately. The word is used most often in physics and engineering, but not always; we can also say, for example, that the trajectory of a whole life may be set in a person's youth, or that a new book traces the long trajectory of the French empire.
TRAJECTORY Defined for English Language Learners
Definition of trajectory for English Language Learners
: the curved path along which something (such as a rocket) moves through the air or through space
Seen and Heard
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