physiatrics 1. That branch of medicine which deals with the diagnosis, treatment, and prevention of disease with the aid of physical agents; such as, light, heat, cold, water, and electricity, or with a mechanical apparatus; physical medicine. 2. An old term for physical therapy. 3. Rehabilitation management. 4. The doctrine or system of natural c... Found on http://www.wordinfo.info/words/index/info/view_unit/1661/4