DISORDER By Nugent, Pam M.S. - April 7, 2013 A group of systems that can involve abnormal behaviour, intense or persistent stress or the disruption of a function. See mental disorder. DISORDER: "Joe suffered from a disorder of his renal system." Related Psychology Terms STRESS REACTION BEHAVIOR DISORDER STRESS-DECOMPENSATION MODEL PSYCHOSIS SEDATIVE-, HYPNOTIC-, OR ANXIOLYTIC-INDUCED PERSISTING AMNESTIC DISORDER BRAIN DISORDER PSYCHOTIC DISORDER PSYCHOMOTOR DISORDER SLEEP DISORDER DYSCONTROL Cite this page: Nugent, Pam M.S., "DISORDER," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/disorder/ (accessed April 25, 2018).