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orthogonal trajectory

noun, Mathematics
the locus of a point whose path cuts each curve of a family of curves at right angles.
1810-20 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Encyclopedia Article for orthogonal trajectory

family of curves that intersect another family of curves at right angles (orthogonal; see ). Such families of mutually orthogonal curves occur in such branches of physics as electrostatics, in which the lines of force and the lines of constant potential are orthogonal; and in hydrodynamics, in which the streamlines and the lines of constant velocity are orthogonal

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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