x_{1} is orthogonal/perpendicular/right/at right angle/rectified/square/normal to x_{2}, where they (are projected to) intersect orthogonally at locus/on set x_{3}, otherwise being utterly distinct (and not even on the same axis/scale) in sense x_{4}

This definition approximately parallels that of panra. For geometric orthogonality, fill x_{4} with "geometry". This can be applied to lines, planes, curves, manifolds, vectors (endowed with inner product), etc. x_{1} and x_{2} are necessarily orthogonal at only x_{3} (but may be elsewhere, such as if they are hyperplanes). x_{1} and x_{2} are symmetric terbri in this word under permutation. Also: "with negative reciprocal slope local to". This is a local property.

- clenykukrypaxra
- x
_{1}is a cross-section of object x_{2}which has an axis, such that the cross-section is made perpendicular to that axis (viewes along it), contains contents x_{3}, and is x_{4}-dimensional. - clenykukrypaxryja'i
- x
_{1}is a form of ornamentation arranged cylindrically and which is meant to be viewed so that its axis is collapsed to a point (in perpendicular cross-section), which adorns x_{2} - tsekane
- x
_{1}(linear manifold, vector, etc.) is/lies secant to x_{2}(object, surface, curve, manifold, etc.) passing through or toward points/loci x_{3}(set of intersected points), by standard/definition/in system x_{4}. - zo'anjo
- x
_{1}(linear manifold, vector, etc.) is/lies tangent to x_{2}(object, surface, curve, manifold, etc.) at point/locus x_{3}, by standard/definition/in system x_{4}.