ORTHO- (ORTH-) By N., Sam M.S. - 2 combining form: 1. perpendicular or straight. 2. accurate or commonplace. ORTHO- (ORTH-): "The orthodontist said I am too young for braces and must come back to be re-evaluated next year." Related Psychology Terms ADOLESCENCE (Theories) Discrimination and Mental Illness in the LGBT Population The Anatomy of Research and the Scientific Method Counselor's Role in Emergency Teams CHILD PSYCHOLOGY CLINICAL PSYCHOLOGY ANTISOCIAL REACTION LYSERGIC ACID (LSD) LEGAL PSYCHIATRY (Forensic Psychiatry) KORSAKOFF’S SYNDROME (Amne- sic-Confabulatory Syndrome) Cite this page: N., Sam M.S., "ORTHO- (ORTH-)," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/ortho-orth/ (accessed November 27, 2022).