1. Financial transactions at a brokerage; having to do with the execution of trades and keeping customer records
   "The brokerage's operations department handled thousands of trades daily";
   - trading operations

1. The state of being in effect or being operative
   "that rule is no longer in operation"
    
2. A business especially one run on a large scale
   "they paid taxes on every stage of the operation"; "they had to consolidate their operations"; "a large-scale farming operation"; "a multinational operation"
    
3. A planned activity involving many people performing various actions
   "running a restaurant is quite an operation"; "consolidate the companies various operations"; "they organized a rescue operation"; "the biggest police operation in French history"
    
4. 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";
   - procedure
    
5. How well something operates
   "the power of its engine determines its operation"; "the plane's operation in high winds";
   - functioning, performance
    
6. The activity of operating something (a machine or business etc.)
   "her smooth operation of the vehicle gave us a surprisingly comfortable ride"
    
7. (surgery) 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";
   - surgery, surgical operation, surgical procedure, surgical process, op [informal]
    
8. (military) activity by a military or naval force (as a manoeuvre or campaign)
   "it was a joint operation of the navy and air force";
   - military operation, op [informal]
    
9. (computing) 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. (mathematics) calculation by mathematical methods
    "they were learning the basic operations of arithmetic"; "The students learned various mathematical operations in algebra class";
    - mathematical process, mathematical operation
     
11. (psychology) the performance of some composite cognitive activity; an operation that affects mental contents
    "the cognitive operation of remembering";
    - process, cognitive process, mental process, cognitive operation

Type of: action, activeness, activity, business activity, calculation, cognition, commercial activity, computation, computing, data processing, dealing, dealings, medical procedure, noesis [technical], physical process, process, transaction, work

Encyclopedia: Operations, administration and maintenance