OPERATION


Meaning of OPERATION in English

transcription, транскрипция: [ ˌä-pə-ˈrā-shən ]

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

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.