Ortho 3633737 219641968 2008-06-16T05:38:12Z Null Nihils 1183429 Fix formatting error {{wiktionary|ortho-}} '''Ortho''' (from the [[Ancient Greek|Greek]] word ''ὀρθός'' meaning "straight" or "correct") may refer to: '''In science'''<br> * An [[arene substitution patterns|arene substitution pattern]] in which two substituents occupy adjacent positions on an aromatic ring * A prefix formally used to indicate the most hydrated form of an acid * [[Ortho Mode Transducer]], is a waveguide component * An [[Orthochromatic]] spectrum is any spectrum of light devoid of red. '''In cartography'''<br> * [[Orthophotography]], aerial photography '''In math'''<br> * [[Orthogonality]] * [[Orthonormality]] '''In computer science'''<br> * [[Orthographic projection]], a means of representing a three-dimensional (3D) object in two dimensions (2D). '''In medicine'''<br> * [[Orthodontics]], a specialty of dentistry concerned with the study and treatment of malocclusions * [[Orthopedic]], the study of the musculoskeletal system. * [[Ortho-DOT]], a psychedelic drug * [[Ortho-cept]] and Ortho Tri-cyclen, kinds of oral contraceptive drug '''Corporations'''<br> * [[Ortho Pharmaceutical]], which merged into [[Ortho-McNeil Pharmaceutical]] before being bought by [[Johnson & Johnson]] * [[Ortho-Clinical Diagnostics]], another subsidiary of Johnson & Johnson ==See also== * [[Orthos]] {{disambig}}