mental illness


noun

any of the various forms of psychosis or severe neurosis.
Also called mental disorder, mental disease.

Origin of mental illness

First recorded in 1960–65

British Dictionary definitions for mental disorder (1 of 2)

mental disorder

noun

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

Derived forms of mental disorder

mentally disordered, adjective

British Dictionary definitions for mental disorder (2 of 2)

mental illness

noun

any of various disorders in which a person's thoughts, emotions, or behaviour are so abnormal as to cause suffering to himself, herself, or other people

Medical definitions for mental disorder (1 of 2)

mental disorder

n.

mental illness

Medical definitions for mental disorder (2 of 2)

mental illness

n.

Any of various psychiatric conditions, usually characterized by impairment of an individual's normal cognitive, emotional, or behavioral functioning, and caused by physiological or psychosocial factors. mental disease mental disorder

Scientific definitions for mental disorder

mental illness
[ mĕntl ]

Any of various psychiatric disorders or diseases, usually characterized by impairment of thought, mood, or behavior.