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Search Result for "operation": 
Wordnet 3.0

NOUN (11)

1. the state of being in effect or being operative;
- Example: "that rule is no longer in operation"

2. a business especially one run on a large scale;
- Example: "a large-scale farming operation"
- Example: "a multinational operation"
- Example: "they paid taxes on every stage of the operation"
- Example: "they had to consolidate their operations"

3. a planned activity involving many people performing various actions;
- Example: "they organized a rescue operation"
- Example: "the biggest police operation in French history"
- Example: "running a restaurant is quite an operation"
- Example: "consolidate the companies various operations"

4. (computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction);
- Example: "it can perform millions of operations per second"

5. activity by a military or naval force (as a maneuver or campaign);
- Example: "it was a joint operation of the navy and air force"
[syn: operation, military operation]

6. a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body;
- Example: "they will schedule the operation as soon as an operating room is available"
- Example: "he died while undergoing surgery"
[syn: operation, surgery, surgical operation, surgical procedure, surgical process]

7. a process or series of acts especially of a practical or mechanical nature involved in a particular form of work;
- Example: "the operations in building a house"
- Example: "certain machine tool operations"
[syn: operation, procedure]

8. process or manner of functioning or operating;
- Example: "the power of its engine determines its operation"
- Example: "the plane's operation in high winds"
- Example: "they compared the cooking performance of each oven"
- Example: "the jet's performance conformed to high standards"
[syn: operation, functioning, performance]

9. (psychology) the performance of some composite cognitive activity; an operation that affects mental contents;
- Example: "the process of thinking"
- Example: "the cognitive operation of remembering"
[syn: process, cognitive process, mental process, operation, cognitive operation]

10. (mathematics) calculation by mathematical methods;
- Example: "the problems at the end of the chapter demonstrated the mathematical processes involved in the derivation"
- Example: "they were learning the basic operations of arithmetic"
[syn: mathematical process, mathematical operation, operation]

11. the activity of operating something (a machine or business etc.);
- Example: "her smooth operation of the vehicle gave us a surprisingly comfortable ride"


The Collaborative International Dictionary of English v.0.48:

Operation \Op`er*a"tion\, n. [L. operatio: cf. F. op['e]ration.] 1. The act or process of operating; agency; the exertion of power, physical, mechanical, or moral. [1913 Webster] The pain and sickness caused by manna are the effects of its operation on the stomach. --Locke. [1913 Webster] Speculative painting, without the assistance of manual operation, can never attain to perfection. --Dryden. [1913 Webster] 2. The method of working; mode of action. [1913 Webster] 3. That which is operated or accomplished; an effect brought about in accordance with a definite plan; as, military or naval operations. [1913 Webster] 4. Effect produced; influence. [Obs.] [1913 Webster] The bards . . . had great operation on the vulgar. --Fuller. [1913 Webster] 5. (Math.) Something to be done; some transformation to be made upon quantities or mathematical objects, the transformation being indicated either by rules or symbols. [1913 Webster] 6. (Surg.) Any methodical action of the hand, or of the hand with instruments, on the human body, to produce a curative or remedial effect, as in amputation, etc. [1913 Webster] Calculus of operations. See under Calculus. [1913 Webster]
WordNet (r) 3.0 (2006):

operation n 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; "a large- scale farming operation"; "a multinational operation"; "they paid taxes on every stage of the operation"; "they had to consolidate their operations" 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"; "consolidate the companies various operations" 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" 5: activity by a military or naval force (as a maneuver or campaign); "it was a joint operation of the navy and air force" [syn: operation, military operation] 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"; "he died while undergoing surgery" [syn: operation, surgery, surgical operation, surgical procedure, surgical process] 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" [syn: operation, procedure] 8: process or manner of functioning or operating; "the 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" [syn: operation, functioning, performance] 9: (psychology) the performance of some composite cognitive activity; an operation that affects mental contents; "the process of thinking"; "the cognitive operation of remembering" [syn: process, cognitive process, mental process, operation, cognitive operation] 10: (mathematics) calculation by mathematical methods; "the problems at the end of the chapter demonstrated the mathematical processes involved in the derivation"; "they were learning the basic operations of arithmetic" [syn: mathematical process, mathematical operation, operation] 11: the activity of operating something (a machine or business etc.); "her smooth operation of the vehicle gave us a surprisingly comfortable ride"
Moby Thesaurus II by Grady Ward, 1.0:

162 Moby Thesaurus words for "operation": accomplished fact, accomplishment, achievement, act, acta, acting, action, activism, activity, adventure, affair, amphibious operations, amputation, anastomotic operation, appliance, application, attempt, behavior, bloodless operation, blow, bringing to fruition, business, business deal, campaign, capital operation, combined operations, commercial transaction, commitment, compensating operation, contract, control, corneal transplant, coup, crescent operation, deal, dealings, deed, direction, doing, doings, dry run, duty, effective, effectuation, efficacious, effort, elective operation, emergency operation, employment, end use, endeavor, engagement, enterprise, excision, execution, exercise, exercising, exertion, exploit, exploitation, exploratory operation, fait accompli, feat, fenestration operation, fluid operations, function, functional, functioning, gest, go, hand, handiwork, handling, heart transplant, immediate purpose, in effect, in force, interval operation, job, kidney transplant, logistics, major operation, management, managing, maneuver, maneuvers, manipulation, measure, military operations, minor operation, minor operations, mission, motion, move, movement, movements, negotiation, obligation, occupation, office, operating, operational, operational purpose, operations, operative, organ transplant, organ transplantation, overproduction, overseas operations, overt act, package deal, palliative operation, passage, performance, plan, play, practice, praxis, procedure, proceeding, production, productiveness, program, project, proposition, purpose, radical operation, realization, removal, res gestae, resection, role, running, section, staff work, step, stroke, stunt, surgical intervention, surgical operation, surgical technique, swing, task, the knife, thing, thing done, tour de force, transaction, transplant, turn, ultimate purpose, undertaking, use, using, utilization, venture, war game, war plans, work, working, workings, works