operation
(noun)
noun
1. the state of being in effect or being operative
- that rule is no longer in operation
Definition categories: state, action, activeness, activity
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
Definition categories: act
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
Definition categories: act, activity
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
Definition categories: process
5. activity by a military or naval force (as a maneuver or campaign)
- it was a joint operation of the navy and air force
Definition categories: act, activity
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
Similar word(s): surgery
Definition categories: act
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
Similar word(s): procedure
Definition categories: act, work
8. process or manner of functioning or operating
- the power of its engine determines its operation
- the plane's operation in high winds
Similar word(s): functioning, performance
Definition categories: process
9. (psychology) the performance of some composite cognitive activity; an operation that affects mental contents
- the cognitive operation of remembering
Similar word(s): process
Definition categories: thought, cognition, knowledge, noesis
10. (mathematics) calculation by mathematical methods
- they were learning the basic operations of arithmetic
Definition categories: act, calculation, computation, computing
11. the activity of operating something (a machine or business etc.)
- her smooth operation of the vehicle gave us a surprisingly comfortable ride
Definition categories: act, activity
Sentences with operation as a noun:
- It is dangerous to look at the beam of a laser while it is in operation.
- The police ran an operation to get vagrants off the streets.
- The Katrina relief operation was considered botched.
- We run our operation from a storefront.
- They run a multinational produce-supply operation.
- She had an operation to remove her appendix.