OPERATION

Definition of OPERATION

  1. (noun)the state of being in effect or being operative
  2. (noun)a business especially one run on a large scale
  3. (noun)a planned activity involving many people performing various actions
  4. (noun)(computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction)
  5. (noun)activity by a military or naval force (as a maneuver or campaign)
  6. (noun)a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body
  7. (noun)a process or series of acts especially of a practical or mechanical nature involved in a particular form of work
  8. (noun)process or manner of functioning or operating
  9. (noun)(psychology) the performance of some composite cognitive activity; an operation that affects mental contents
  10. (noun)(mathematics) calculation by mathematical methods
  11. (noun)the activity of operating something (a machine or business etc.)