orthogonal

/ɔɹˈθɑ.ɡə.nəl/ adjective C2

Of two objects, at right angles; perpendicular to each other. · A chord and the radius that bisects it are orthogonal.
Of a pair of vectors: having a zero inner product; perpendicular. · The normal vector and tangent vector at a given point are orthogonal.
Of a square matrix: such that its transpose is equal to its inverse.
Of a linear transformation: preserving its angles.
Of grid graphs, board games and polyominoes: vertical or horizontal but not diagonal.
Of a pair of elements in an ortholattice: each less than or equal to the orthocomplement of the other.
Statistically independent, with reference to variates.
Of two or more aspects of a problem, able to be treated separately; of a design, exhibiting consistency and composability. · The content of the message should be orthogonal to the means of its delivery.

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orthogonal An orthogonal line. C2

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