1) Medical specialty 2) Medicine 3) Psychiatrical 1) Psychiatrical 
• (a.) Of or pertaining to psychiatria.
pertaining to or within the purview of psychiatry.
[Adjective] To do with the mental health treatment.
Pertaining to or within the purview of psychiatry. ... (18 Nov 1997) ... 
Psy`chi·at'ric adjective (Medicine) Of or pertaining to psychiatria. 
Type: Term Pronunciation: sī′kē-at′rik Definitions: 1. Relating to psychiatry.
Psychiatric: Pertaining to or within the purview of psychiatry, the medical specialty concerned with the prevention, diagnosis, and treatment of mental illness. Psychiatric may refer to mental illness. For example, the 42-year-old man had a long history of psychiatric disease.
[adj] - relating to or used in or engaged in the practice of psychiatry
psychiatric, psychiatrics 1. A reference to psychiatry, the science concerned with the study, diagnosis, and prevention of mental illness. 2. Pertaining to or within the purview of psychiatry.
psychiatrical adjective relating to or used in or engaged in the practice of psychiatry; `psychiatric disorder`; `psychiatric hospital`