enâ²erÂ·vaâ²tor n. Usage Note: Sometimes people mistakenly use enervate to mean to invigorate or to excite by assuming that this word is a close cousin of the verb energize. In fact enervate does not come from the same source as energize (Greek energos, active). It comes from Latin nervus, sinew..
Also found in: Dictionary, Acronyms, Encyclopedia, Wikipedia. review of systems (ROS) (in a health history) a system-by-system review of the body functions. The ROS is begun during the initial interview with the patient and completed during the physical examination, as physical findings prompt further questions. Questions about family or personal history are included in each section.
Definition. A line of thought in the management field which stresses the interactive nature and interdependence of external and internal factors in an organization. A systems approach is commonly used to evaluate market elements which affect the profitability of a business.