Wiktionary (en) (en) orthogonal orthogonal orthogonal orthogonal Wiktionary wikt:orthogonal orthogonal wikt:orthogonal Wiktionary English wikt:orthogonal (en) English orthogonal (en) orthogonal orthogonal http://en.wiktionary.org/wiki/orthogonal (en) (en) (en) (en) English (en) English (en) orthogonal orthogonal orthogonal English orthogonal orthogonal English orthogonal orthogonal orthogonal (en) (en) orthogonal orthogonal