English dictionary

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English noun: operation

1. operation (state) the state of being in effect or being operative

SamplesThat rule is no longer in operation.

Broader (hypernym)action, activeness, activity

Narrower (hyponym)commission, idle, running

2. operation (act) a business especially one run on a large scale

SamplesA large-scale farming operation.
A multinational operation.
They paid taxes on every stage of the operation.
They had to consolidate their operations.

Broader (hypernym)business activity, commercial activity

3. operation (act) a planned activity involving many people performing various actions

SamplesThey organized a rescue operation.
The biggest police operation in French history.
Running a restaurant is quite an operation.
Consolidate the companies various operations.

Broader (hypernym)activity

Narrower (hyponym)rescue operation, undercover operation

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

SamplesIt can perform millions of operations per second.

Broader (hypernym)data processing

Narrower (hyponym)access, asynchronous operation, auxiliary operation, binary arithmetic operation, binary operation, boolean operation, computer operation, concurrent operation, consecutive operation, control function, control operation, dyadic operation, fixed-cycle operation, logic operation, logical operation, lookup, machine operation, memory access, monadic operation, multiplex operation, off-line operation, parallel operation, printing operation, search, sequential operation, serial operation, simultaneous operation, sort, sorting, synchronous operation, threshold operation, unary operation

Domain categorycomputer science, computing

5. operation (act) activity by a military or naval force (as a maneuver or campaign)

SamplesIt was a joint operation of the navy and air force.

Synonymsmilitary operation

Broader (hypernym)activity

Narrower (hyponym)amphibious operation, attack, campaign, combined operation, covert operation, information gathering, maneuver, manoeuvre, military campaign, military mission, mission, naval campaign, offence, offense, offensive, onrush, onset, onslaught, peacekeeping, peacekeeping mission, peacekeeping operation, psychological operation, psyop, reenforcement, reinforcement, simulated military operation, support

Instance hyponymArgonne, Argonne Forest, Meuse, Meuse River, Meuse-Argonne, Meuse-Argonne operation, Operation Desert Storm

Domain categoryarmed forces, armed services, military, military machine, war machine

6. operation (act) a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body

SamplesThey will schedule the operation as soon as an operating room is available.
He died while undergoing surgery.

Synonymssurgery, surgical operation, surgical procedure, surgical process

Broader (hypernym)medical procedure

Narrower (hyponym)ablation, amputation, anaplasty, angioplasty, arthroplasty, arthroscopy, brain surgery, castration, catheterisation, catheterization, cauterisation, cauterization, cautery, chemosurgery, craniotomy, cryosurgery, curettage, curettement, cutting out, D and C, debridement, decortication, dilatation and curettage, dilation and curettage, electrosurgery, enterostomy, enterotomy, enucleation, evisceration, excision, exenteration, extirpation, eye operation, eye surgery, fenestration, gastrectomy, gastroenterostomy, gastrostomy, haemorrhoidectomy, heart surgery, hemorrhoidectomy, hysterotomy, implantation, intestinal bypass, jejunostomy, major surgery, microsurgery, minor surgery, myotomy, myringectomy, myringoplasty, myringotomy, neurosurgery, orchiopexy, organ transplant, osteotomy, ostomy, palatopharyngoplasty, phlebectomy, photocoagulation, plastic surgery, polypectomy, PPP, purse-string operation, reconstructive surgery, resection, rhinotomy, rhizotomy, sex-change operation, Shirodkar's operation, sterilisation, sterilization, strabotomy, taxis, tracheostomy, tracheotomy, transplant, transplantation, transsexual surgery, trephination, tympanoplasty, UPPP, uranoplasty, uvulopalatopharyngoplasty, vasovasostomy, vivisection, wrong-site surgery

Part holonymhaemostasia, haemostasis, hemostasia, hemostasis, incision, section, surgical incision, suturing

Domain categorysurgery

Domain category membersablate, decorticate, freeze, hypophysectomise, hypophysectomize, suction, trepan

7. operation (act) a process or series of acts especially of a practical or mechanical nature involved in a particular form of work

SamplesThe operations in building a house.
Certain machine tool operations.


Broader (hypernym)work

8. operation (process) process or manner of functioning or operating

SamplesThe 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.

Synonymsfunctioning, performance

Broader (hypernym)physical process, process

9. operation (cognition) (psychology) the performance of some composite cognitive activity; an operation that affects mental contents

SamplesThe process of thinking.
The cognitive operation of remembering.

Synonymscognitive operation, cognitive process, mental process, process

Broader (hypernym)cognition, knowledge, noesis

Narrower (hyponym)basic cognitive process, higher cognitive process

Domain categorypsychological science, psychology

10. operation (act) (mathematics) calculation by mathematical methods

SamplesThe problems at the end of the chapter demonstrated the mathematical processes involved in the derivation.
They were learning the basic operations of arithmetic.

Synonymsmathematical operation, mathematical process

Broader (hypernym)calculation, computation, computing

Narrower (hyponym)arithmetic operation, combination, construction, differentiation, exponentiation, integration, involution, matrix operation, maximization, permutation, relaxation, relaxation method

Domain categorymath, mathematics, maths

11. operation (act) the activity of operating something (a machine or business etc.)

SamplesHer smooth operation of the vehicle gave us a surprisingly comfortable ride.

Broader (hypernym)activity

Domain categorybusiness, business enterprise, commercial enterprise

Based on WordNet 3.0 copyright © Princeton University.
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