Similar words: orthography, orthographic, agonal, diagonal, diagonally, octagonal, hexagonal, tetragonal. Meaning: [ɔr'θɑgənl /ɔː'θɒ-] 
adj. 1. not pertinent to the matter under consideration 2. statistically unrelated 3. having a set of mutually perpendicular axes; meeting at right angles.
adj. 1. not pertinent to the matter under consideration 2. statistically unrelated 3. having a set of mutually perpendicular axes; meeting at right angles. 
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More similar words: orthography, orthographic, agonal, diagonal, diagonally, octagonal, hexagonal, tetragonal, porthole, orthodox, orthodoxy, orthopnea, unorthodox, orthopedic, unorthodoxy, orthopedist, orthopedics, orthopaedic, orthopaedics, orthodontics, orthodontist, food for thought, orthodox church, log on, proportional, proportionally, eastern orthodox church, proportionality, proportional tax, pathogen.