orthogonal trajectory

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noun Mathematics.

the locus of a point whose path cuts each curve of a family of curves at right angles.

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Origin of orthogonal trajectory

First recorded in 1810–20

On his present trajectory, Putin shows no signs that he will conform to international legal and moral norms.
Putin’s World Cup Picasso ‘Bribe’|Tunku Varadarajan|December 1, 2014|DAILY BEAST
Melville may be the most famous example, but Kafka, Kate Chopin, and many others followed a similar trajectory.
The Birth of the Novel|Nick Romeo|November 27, 2014|DAILY BEAST
This would definitely not put us on the right trajectory heading into 2016.
If GOP Loses Next Week, Cue the Crack Up|David Freedlander|October 29, 2014|DAILY BEAST
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|DAILY BEAST

But, says Greason, “We only take work within 30 degrees of our base trajectory.”
Up to a Point: A 'Space Corvette' in Every Garage|P. J. O’Rourke|September 6, 2014|DAILY BEAST
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.
Scientific American Supplement, No. 324, March 18, 1882|Various