the curve described by a projectile, rocket, or the like in its flight.
Geometry. a curve or surface that cuts all the curves or surfaces of a given system at a constant angle.
- tra·jec·tile [truh-jek-til, -tahyl], /trəˈdʒɛk tɪl, -taɪl/, adjective
- tra·jec·tion [truh-jek-shuhn], /trəˈdʒɛk ʃən/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use trajectory in a sentence
In 2020, the trajectory of e-commerce is on an even steeper upward curve.‘Retailers are media owners in their own right’: Why e-commerce is driving more of Unilever’s media spend | Seb Joseph | September 9, 2020 | Digiday
The city’s current deputy mayor for public safety, Susan Lee, says the improved trajectory could be attributed partly to Eddie Johnson, the police superintendent installed by then-Mayor Rahm Emanuel in April 2016.What Can Mayors Do When the Police Stop Doing Their Jobs? | by Alec MacGillis | September 3, 2020 | ProPublica
Governments and businesses must move toward a new form of inclusiveness with built-in trajectory and compensation mechanisms for those who today benefit the least.We won’t have a true economic recovery until we tackle the racial wealth gap | matthewheimer | September 1, 2020 | Fortune
With high brand recognition, positive user signals, solid site performance and consistent quality management, the website visibility was good and on an upwards trajectory.
That’s also the trajectory of Google and its local business profiles.Yelp’s updated ‘Request a Quote’ and new ‘Nearby Jobs’ provide lead-gen for SMBs | Greg Sterling | August 18, 2020 | Search Engine Land
On his present trajectory, Putin shows no signs that he will conform to international legal and moral norms.
Melville may be the most famous example, but Kafka, Kate Chopin, and many others followed a similar trajectory.
This would definitely not put us on the right trajectory heading into 2016.
The war back then was clearly becoming more sectarian and Islamic—the trajectory was obvious.Who Are These ‘Moderate’ Syrians Obama Wants to Pit Against ISIS? | Jamie Dettmer | September 15, 2014 | THE DAILY BEAST
But, says Greason, “We only take work within 30 degrees of our base trajectory.”
By firing westwards, they could place an enfilade barrage of low trajectory bullets which swept the rides through the wood.The History of the 51st (Highland) Division 1914-1918 | Frederick William Bewsher
It executed a boomerang trajectory, lit again on the same spot, and began rubbing its legs as before.Bizarre | Lawton Mackall
Whatever the trajectory may be we see that the shell must necessarily arrive in a slanting direction.The Romance of War Inventions | Thomas W. Corbin
The greater the velocity, the flatter the trajectory becomes.Gunshot Roentgenograms | Clyde S. Ford
The greater the velocity, the lower the trajectory, and the greater the chance of striking the target.
British Dictionary definitions for trajectory
the path described by an object moving in air or space under the influence of such forces as thrust, wind resistance, and gravity, esp the curved path of a projectile
geometry a curve that cuts a family of curves or surfaces at a constant angle
- trajectile (trəˈdʒɛktaɪl), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for trajectory
Physics The line or curve described by an object moving through space.
Mathematics A curve or surface that passes through a given set of points or intersects a given series of curves or surfaces at a constant angle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.