noun Etymology: Middle English operacioun, from Middle French operation, from Latin operation-, operatio, from operari Date: 14th century 1. performance of a practical work or of something involving the practical application of principles or processes 2. a. an exertion of power or influence <
the operation of a drug
b. the quality or state of being functional or operative <
the plant is now in operation
c. a method or manner of functioning <
a machine of very simple operation
3. efficacy, potency — archaic except in legal usage 4. a procedure performed on a living body usually with instruments especially for the repair of damage or the restoration of health 5. any of various mathematical or logical processes (as addition) of deriving one entity from others according to a rule 6. a. a usually military action, mission, or maneuver including its planning and execution b. plural the office on the flight line of an airfield where pilots file clearance for flights and where flying from the field is controlled c. plural the agency of an organization charged with carrying on the principal planning and operating functions of a headquarters and its subordinate units 7. a business transaction especially when speculative 8. a single step performed by a computer in the execution of a program 9. a usually small business or establishment <
ran a struggling operation

New Collegiate Dictionary. 2001.


Look at other dictionaries:

  • opération — [ ɔperasjɔ̃ ] n. f. • XIIIe « ouvrage, travail »; lat. operatio 1 ♦ Action d un pouvoir, d une fonction, d un organe qui produit un effet selon sa nature. Les opérations de la digestion. « La mémoire est nécessaire pour toutes les opérations de… …   Encyclopédie Universelle

  • operation — op‧e‧ra‧tion [ˌɒpəˈreɪʆn ǁ ˌɑː ] noun 1. [uncountable] the way the parts of a machine, system etc work together, or the process of making a machine, system etc work: • the design and operation of specialized equipment 2. in/​into operation… …   Financial and business terms

  • Operation — may refer to: Scientific operation Surgery, or operation An operation in mathematics: Unary operation Binary operation Arity In language, an operation is a word which represents a function (or instruction), rather than a term or name In computer… …   Wikipedia

  • Operation — (von lateinisch operatio, „die Verrichtung“) bezeichnet: Operation (Medizin), in der Medizin einen chirurgischen Eingriff in den Organismus Operation (Informatik), in der EDV einen durch einen Befehl ausgelösten Programmschritt Operation (UML),… …   Deutsch Wikipedia

  • operation — Operation. s. f. v. L action de ce qui opere. Nous ne pouvons rien pour nostre salut sans l operation du S. Esprit. l operation de la grace dans les ames. c est un effet de l operation de la grace. les operations de la grace. les operations de la …   Dictionnaire de l'Académie française

  • 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… …   The Collaborative International Dictionary of English

  • Operation — Opération Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. En mathématiques, les opérations sont des fonctions n aires parmi lesquelles on peut signaler les quatre opérations de base. Les opérations sont …   Wikipédia en Français

  • operation — [n1] movement, working act, action, activity, affair, agency, application, ballgame*, bit, carrying on, conveyance, course, deal, deed, doing, effect, effort, employment, engagement, enterprise, exercise, exercising, exertion, exploitation, force …   New thesaurus

  • operation — [äp΄ə rā′shən] n. [ME operacion < OFr < L operatio] 1. the act, process, or method of operating 2. the condition of being in action or at work 3. a process or action that is part of a series in some work 4. a) any movement or series of… …   English World dictionary

  • operation — (n.) late 14c., action, performance, work, also the performance of some science or art, from O.Fr. operacion, from L. operationem (nom. operatio) a working, operation, from pp. stem of operari to work, labor (in L.L. to have effect, be active,… …   Etymology dictionary

  • Operation — [Aufbauwortschatz (Rating 1500 3200)] Bsp.: • Die Operation dauerte zwei Stunden …   Deutsch Wörterbuch

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