operating microscope n.
See surgical microscope.
- Operating profit
noun a company’s earning power from its operations, equal to earnings before deduction of interest payments and income taxes
noun 1. a specially equipped room, usually in a hospital, where surgical procedures are performed. Abbreviation: OR. operating room n. A room equipped for performing surgical operations.
noun, Computers. 1. the collection of software that directs a computer’s operations, controlling and scheduling the execution of other programs, and managing storage, input/output, and communication resources. Abbreviation: OS. noun 1. the set of software that controls the overall operation of a computer system, typically by performing such tasks as memory allocation, job scheduling, and […]
- Operating table
noun 1. the table on which the patient lies during a surgical operation