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Any of various disorders, such as schizophrenia, bipolar disorder, or autism spectrum disorder, characterized by a distressing or disabling impairment of an individual's cognitive, emotional, or social functioning.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Law) law (in England, according to the Mental Health Act 1983) mental illness, arrested or incomplete development of mind, psychopathic disorder, or any other disorder or disability of the mind
mentally disordered adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||mental disorder - (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness|
psychiatry, psychological medicine, psychopathology - the branch of medicine dealing with the diagnosis and treatment of mental disorders
disorder, upset - a physical condition in which there is a disturbance of normal functioning; "the doctor prescribed some medicine for the disorder"; "everyone gets stomach upsets from time to time"
Asperger's syndrome - a psychiatric disorder usually noted during early school years; characterized by impaired social relations and by repetitive patterns of behavior
anxiety disorder - a cover term for a variety of mental disorders in which severe anxiety is a salient symptom
psychosomatic disorder - a mental disorder that causes somatic symptoms
aberration - a disorder in one's mental state
conversion disorder, conversion hysteria, conversion reaction - a mental disorder characterized by the conversion of mental conflict into somatic forms (into paralysis or anesthesia having no apparent cause)
delirium - a usually brief state of excitement and mental confusion often accompanied by hallucinations
delusional disorder - any mental disorder in which delusions play a significant role
encopresis - involuntary defecation not attributable to physical defects or illness
folie a deux - the simultaneous occurrence of symptoms of a mental disorder (as delusions) in two persons who are closely related (as siblings or man and wife)
personality disorder - inflexible and maladaptive patterns of behavior
affective disorder, emotional disorder, emotional disturbance, major affective disorder - any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant
schizothymia - resembling schizophrenia but remaining within the bounds of normality
neurosis, neuroticism, psychoneurosis - a mental or personality disturbance not attributable to any known neurological or organic dysfunction
dissociative disorder - dissociation so severe that the usually integrated functions of consciousness and perception of self break down
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