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Meaning & Definition of Operation in English

English

Operation

/ɑpəreʃən/

noun

1. The state of being in effect or being operative

  • "That rule is no longer in operation"
    synonym:
  • operation

2. A business especially one run on a large scale

  • "A large-scale farming operation"
  • "A multinational operation"
  • "They paid taxes on every stage of the operation"
  • "They had to consolidate their operations"
    synonym:
  • operation

3. A planned activity involving many people performing various actions

  • "They organized a rescue operation"
  • "The biggest police operation in french history"
  • "Running a restaurant is quite an operation"
  • "Consolidate the companies various operations"
    synonym:
  • operation

4. (computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction)

  • "It can perform millions of operations per second"
    synonym:
  • operation

5. Activity by a military or naval force (as a maneuver or campaign)

  • "It was a joint operation of the navy and air force"
    synonym:
  • operation
  • ,
  • military operation

6. A medical procedure involving an incision with instruments

  • Performed to repair damage or arrest disease in a living body
  • "They will schedule the operation as soon as an operating room is available"
  • "He died while undergoing surgery"
    synonym:
  • operation
  • ,
  • surgery
  • ,
  • surgical operation
  • ,
  • surgical procedure
  • ,
  • surgical process

7. A process or series of acts especially of a practical or mechanical nature involved in a particular form of work

  • "The operations in building a house"
  • "Certain machine tool operations"
    synonym:
  • operation
  • ,
  • procedure

8. Process or manner of functioning or operating

  • "The power of its engine determines its operation"
  • "The plane's operation in high winds"
  • "They compared the cooking performance of each oven"
  • "The jet's performance conformed to high standards"
    synonym:
  • operation
  • ,
  • functioning
  • ,
  • performance

9. (psychology) the performance of some composite cognitive activity

  • An operation that affects mental contents
  • "The process of thinking"
  • "The cognitive operation of remembering"
    synonym:
  • process
  • ,
  • cognitive process
  • ,
  • mental process
  • ,
  • operation
  • ,
  • cognitive operation

10. (mathematics) calculation by mathematical methods

  • "The problems at the end of the chapter demonstrated the mathematical processes involved in the derivation"
  • "They were learning the basic operations of arithmetic"
    synonym:
  • mathematical process
  • ,
  • mathematical operation
  • ,
  • operation

11. The activity of operating something (a machine or business etc.)

  • "Her smooth operation of the vehicle gave us a surprisingly comfortable ride"
    synonym:
  • operation

Examples of using

How long did it take you to recover from your operation?
What complications can occur with such an operation?
The doctor performed a difficult operation.