orthogonal vs rightwise

Of two objects, at right angles; perpendicular to each other. 

Of a square matrix: such that its transpose is equal to its inverse. 

Of grid graphs, board games and polyominoes: vertical or horizontal but not diagonal. 

Of two or more aspects of a problem, able to be treated separately; of a design, exhibiting consistency and composability. 

Of a pair of vectors: having a zero inner product; perpendicular. 

Of two or more problems or subjects, independent of or irrelevant to each other. 

Of a pair of elements in an ortholattice: each less than or equal to the orthocomplement of the other. 

Of a linear transformation: preserving its angles. 

Statistically independent, with reference to variates. 

Rightward (to or from the right side); on the right side. 

Clockwise, moving clockwise.