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Definitions of operation

  1. the performance of some composite cognitive activity; an operation that affects mental contents; "the process of thinking"; "the cognitive operation of remembering" Scrapingweb Dictionary DB
  2. process or manner of functioning or operating; "the power of its engine determine 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" Scrapingweb Dictionary DB
  3. (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" Scrapingweb Dictionary DB
  4. activity by a military or naval force (as a maneuver or campaign); "it was a joint operation of the navy and air force" Scrapingweb Dictionary DB
  5. the state of being in effect or being operative; "that rule is no longer in operation" Scrapingweb Dictionary DB
  6. the activity of operating something (a machine or business etc.); "her smooth operation of the vehicle gave us a surprisingly comfortable ride" Scrapingweb Dictionary DB
  7. 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" Scrapingweb Dictionary DB
  8. 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" Scrapingweb Dictionary DB
  9. 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" Scrapingweb Dictionary DB
  10. (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" Scrapingweb Dictionary DB
  11. 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" Wordnet Dictionary DB
  12. (psychology) the performance of some composite cognitive activity; an operation that affects mental contents; "the process of thinking"; "the cognitive operation of remembering" Wordnet Dictionary DB
  13. The act or process of operating; agency; the exertion of power, physical, mechanical, or moral. Webster Dictionary DB
  14. The method of working; mode of action. Webster Dictionary DB
  15. That which is operated or accomplished; an effect brought about in accordance with a definite plan; as, military or naval operations. Webster Dictionary DB
  16. Effect produced; influence. Webster Dictionary DB
  17. Something to be done; some transformation to be made upon quantities, the transformation being indicated either by rules or symbols. Webster Dictionary DB
  18. 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. Webster Dictionary DB
  19. Working or way of working; regular action; as, the machine is in operation; agency; surgical action upon the body; a series of movements of an army or fleet. The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919.
  20. The act of operating. 1. Any surgical procedure. 2. The action of a drug or other remedy. 3. An evacuation of the bowels. A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
  21. Incision or excision of any part of the body. Warner's pocket medical dictionary of today. By William R. Warner. Published 1898.
  22. Act or process of operating: agency: influence: method of working: action or movements: surgical performance. The american dictionary of the english language. By Daniel Lyons. Published 1899.
  23. Agency; influence; action; surgical act. The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894.
  24. The act of operating; act; mode of action; process. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.
  25. Surgical treatment, as for removal of a part. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.
  26. The act or process of operating; agency; the exertion of power, physical, mechanical, or moral; manipulation; movement of an army or fleet, or of machinery, or any physical body. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.
  27. The act or process of operating; something to be done; agency; process; influence; action; effect; in surg., any action done by a qualified person upon the human body, with the hand or by means of an instrument, with a view to heal or bring to a normal state. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
  28. Something to be done; some transformation to be made upon quantities or mathematical objects, the transformation being indicated either by rules or symbols. dictgcide_fs
  29. Operatio, from opus, operis, 'work.' The application of instruments to the human body with the view of curing disease. The object of an operation, operatio chirurgica, is generally to divide or reunite parts, to extract extraneous or noxious bodies, and to replace organs that are wanting, by different instruments or artificial means. The principal operatory methods have been called Synthesis, Diaeresis, Exaeresis, and Prothesis. Frequently, the most difficult subject connected with an operation is to decide when it is absolutely called for or advisable, and when improper. Medical Lexicon. A Dictionary of Medical Science
  30. Working, action, way thing works, efficacy, validity, scope, (is in, comes into, o.; its o. is easily explained; must extend its o., make it valid for longer time or in wider sphere); active process, activity, performance, discharge of function, (the o. of breathing, thinking, pruning, &c.); financial transaction; (Surg.) thing done with hand or instrument to some part of body to remedy deformity, injury, disease, pain, &c.; strategic movement of troops, ships, &c.; (Math.) subjection of number or quantity to process affecting its value or form, e.g. multiplication. [old French] Concise Oxford Dictionary
  31. An act done with instruments or by the hands of a surgeon. American pocket medical dictionary.
  32. The performance of any act; in surgery, of a manual act upon the body, generally with instruments; also the act thus performed. [Lat.] Appleton's medical dictionary.
  33. n. Act or process of operating; agency; the exertion of power, physical, mechanical, or moral;- action; effect;- method of working; process; manipulation;- mathematical change of quantities or relations;- action of machinery;- strategetical movement of an army or fleet;- in surgery, any methodical action of the hand, or of the hand with instruments, on the human body. Cabinet Dictionary
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