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1. Dictionary

   Op·er·a·tion

   /ˌäpəˈrāSH(ə)n/

   

   noun

   • 1. the fact or condition of functioning or being active: "the construction and operation of power stations" Similar functioningworkingrunningperformanceactionbehavior
   • ▪ 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. a piece of organized and concerted activity involving a number of people, especially members of the armed forces or the police: "a rescue operation" Similar actionactivityexerciseaffairbusinessundertakingstepenterprisetaskjobprocessproceduremaneuvercampaign
   • ▪ a business organization; a company: "he reopened his operation under a different name" Similar businessenterprisecompanyfirmorganizationconcerninformal:outfitsetup
   • ▪ an activity in which a business is involved: "the company is selling most of its commercial banking operations"
   • ▪ preceding a code name for an organized military or police activity: "Operation Desert Storm"
   • 4. a process in which a number, quantity, expression, etc., is altered or manipulated according to 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 labor on’ (see operate).

   Scrabble Points: 11

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2. www.merriam-webster.com › dictionary › operationOperation Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › operation

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   The meaning of OPERATION is performance of a practical work or of something involving the practical application of principles or processes. How to use operation in a sentence.

3. dictionary.cambridge.org › dictionary › englishOPERATION | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   OPERATION definition: 1. the fact of operating or being active: 2. the way that parts of a machine or system work…. Learn more.

4. www.dictionary.com › browse › operationOPERATION Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › operation

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   a process, method, or series of acts, esp of a practical or mechanical nature. surgery any manipulation of the body or one of its organs or parts to repair damage, arrest the progress of a disease, remove foreign matter, etc.

5. dictionary.cambridge.org › us › dictionaryOPERATION | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   OPERATION meaning: 1. the fact of operating or being active: 2. the way that parts of a machine or system work…. Learn more.

6. www.vocabulary.com › dictionary › operationOperation - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › operation

   Operation can refer to medical surgery, a military campaign, or mathematical methods, such as multiplication and division. Operation comes from the Latin word opus (“work”) and can refer to a whole range of practical activities and work.

7. www.oxfordlearnersdictionaries.com › us › definitionoperation noun - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › us › definition

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   Definition of operation noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

8. www.collinsdictionary.com › us › dictionaryOPERATION definition in American English | Collins English ...

   www.collinsdictionary.com › us › dictionary

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   An operation is the process of cutting open someone's body in order to repair, replace, or remove a damaged part.

9. dictionary.cambridge.org › dictionary › learner-englishOPERATION | meaning - Cambridge Learner's Dictionary

   dictionary.cambridge.org › dictionary › learner-english

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   OPERATION definition: 1. If you have an operation, a doctor cuts your body to remove or repair part of it: 2. an…. Learn more.

10. www.thefreedictionary.com › operationOperation - definition of operation by The Free Dictionary

    www.thefreedictionary.com › operation

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    1. The act or process of operating or functioning. 2. The state of being operative or functional: a factory in operation. 3. A process or series of acts involved in a particular form of work: the operation of building a house. 4. An instance or method of efficient, productive activity: That restaurant is quite an operation. 5.

11. www.britannica.com › dictionary › operationOperation Definition & Meaning | Britannica Dictionary

    www.britannica.com › dictionary › operation

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    OPERATION meaning: 1 : a process in which a doctor cuts into someone's body in order to repair or remove a damaged or diseased part; 2 : a usually small business or organization