Institution for treating severe mental illnesses.

Mentally ill, legally unaccountable behavior.

Institutions for treating severe mental illnesses.

Not criminally responsible due to mental illness.

False belief, resistant to reason.

Root of irrational or imaginary numbers.

Neurosyphilis causing progressive mental deterioration.

(pathology) A neuropsychiatric disorder caused by late-stage syphilis, and characterized by fatigue, headaches, insomnia, personality changes, delusions, etc.

Institutions for mental health treatment.