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   operation

   /ˌɒpəˈreɪʃn/

   noun

   • 1. the action of functioning or the fact of being active or in effect: "restrictions on the operation of market forces" Similar functioningworkingrunningperformanceactionbehaviour
   • ▪ an active process; a discharge of a function: "the operations of the mind"
   • 2. an act of surgery performed on a patient: "I've never felt better since my bypass operation" Similar surgerysurgical operationsurgical interventionmajor surgeryminor surgery
   • 3. an organized activity involving a number of people: "a rescue operation" Similar actionactivityexerciseaffairbusinessundertakingstepenterprisetaskjobprocessproceduremanoeuvrecampaign
   • ▪ a business organization; a company: "he reopened his operation under a different name" Similar businessenterprisecompanyfirmorganizationconcerninformal:outfitset-up
   • ▪ an activity in which a business is involved: "the company is selling most of its commercial banking operations"
   • 4. a process in which a number, quantity, expression, etc., is altered or manipulated according to set formal rules, such as those of addition, multiplication, and differentiation.

   Word Origin late Middle English: via Old French from Latin operatio(n-), from the verb operari ‘expend labour on’ (see operate).

   Scrabble Points: 11

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