📖 WordNook

operation

noun
  1. the activity of operating something such as a machine or business
    “The smooth operation of the vehicle gave us a surprisingly comfortable ride.”
  2. a planned activity involving many people performing various actions
    “they organized a rescue operation”
  3. 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”
    procedure
  4. a medical procedure involving an incision with instruments
    surgerysurgical operationsurgical proceduresurgical process
  5. (mathematics) calculation by mathematical methods
    mathematical processmathematical operation
  6. activity by a military or naval force (as a maneuver or campaign)
    “it was a joint operation of the navy and air force”
    military operation
  7. a business especially one run on a large scale
    “a large-scale farming operation”
  8. (psychology) the performance of some composite cognitive activity
    “an operation that affects mental contents”
    process
  9. (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”
  10. process or manner of functioning or operating
    “the power of its engine determines its operation”
    functioningperformance
  11. the state of being in effect or being operative
    “that rule is no longer in operation”