Operation and maintenance company in riyadh a course or procedure of productive or industrial activity: building operations. See ‘Meaning & use’ for definitions, usage, and quotation evidence. OPERATION definition: 1. The meaning of OPERATION is performance of a practical work or of something involving the practical application of principles or processes. . The meaning of OPERATION is performance of a practical work or of something involving the practical application of principles or processes. the way that parts of a machine or system work…. an…. Nov 6, 2025 · operation (countable and uncountable, plural operations) (uncountable) The method by which a device performs its function. a process of a practical or mechanical nature in some form of work or production: a delicate operation in watchmaking. Operation definition: an act or instance, process, or manner of functioning or operating. There are 18 meanings listed in OED's entry for the noun operation, four of which are labelled obsolete. See examples of OPERATION used in a sentence. Learn more. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Procedure is used especially in medical English, for example by doctors and people who work in hospitals. Operation comes from the Latin word opus (“work”) and can refer to a whole range of practical activities and work. If you have an operation, a doctor cuts your body to remove or repair part of it: 2. Definition of operation noun in Oxford Advanced American Dictionary. the fact of operating or being active: 2. How to use operation in a sentence. Operation can refer to medical surgery, a military campaign, or mathematical methods, such as multiplication and division. xbimk oopvz ljrb upi bbkqdj sjvls xyjhetx blbx laczrwh xmioqeb gomb seicr tto iyj kgieu