psychiatry, psychological medicine, psychopathology - the branch of medicine dealing with the diagnosis and treatment of mental disorders

disorder, upset - 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"

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