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operation
1 ENTRIES FOUND:
plural operations
plural operations
Learner's definition of OPERATION
1
[count] : a process in which a doctor cuts into someone's body in order to repair or remove a damaged or diseased part手术
- She is recovering from a major heart operation. [=she is recovering from major heart surgery]她做了一次心脏的大手术，正在恢复中。
- a minor/routine operation小/常规手术
- organ transplant operations器官移植手术
2
[count]
a : a usually small business or organization（通常规模较小的）企业，公司。
- The family runs a small farming operation.这个家族经营着一家小型农业企业。
- The company is a billion-dollar operation.这是一家拥有十亿美元资产的企业。
b : an activity of a business or organization（企业、公司的）运营，业务活动 — usually plural通常用复数
- a company's banking operations公司的银行业务
- An independent company has been hired to review the hospital's operations.一家独立公司受雇检查这家医院的运营情况。
3
[noncount] : the state of functioning or being used运转；运行 — used with in or into与in或into连用
- The system is now in operation.这个系统正在运行中。
- The mill has been in operation for over 100 years.这家磨坊已经经营100多年了。
- Safety goggles must be worn while the machine is in operation. [=in use]机器运转中必须佩戴护目镜。
- The dam will go into operation next month.大坝将于下个月投入使用。
4
[noncount] : the way something functions or is used运行方式；操作方式
- The camera's design allows for easy operation.这架相机的设计便于操作。
- the quiet operation of the printer打印机的静音工作模式
5
[count] : a set of planned actions for a particular purpose（有计划、有目的的）行动，活动
- The city has launched an operation to clean up the neighborhood.这个城市发起了一场清扫街区的活动。
- Ten arrests were made in an undercover operation.在一次秘密行动中有十人被捕。
- a rescue operation营救行动
- The military operation gave them control of the city.军事行动让他们获得了城市的控制权。
- peacekeeping operations维和行动
6
[count] : a single action performed by a computer（计算机）操作，运算
- The computer can perform millions of operations per second.这台计算机每秒钟可以运算数百万次。
7
[noncount] : the act of using and controlling something操作；操控
- He was arrested for unlicensed operation of a motor vehicle.他因无照驾驶机动车被捕。
8
[count] mathematics : a mathematical process (such as addition or multiplication) that is used for getting one number or set of numbers from others according to a rule运算
operation
noun
op·er·a·tion ˌä-pə-ˈrā-shən 
6
b
operations 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
operations plural : the agency of an organization charged with carrying on the principal planning and operating functions of a headquarters and its subordinate units
8
: a single step performed by a computer in the execution of a program (see program entry 1 sense 6a)
Example Sentences
The family runs a small farming operation. The company is a billion-dollar operation.
Recent Examples on the Web The day of the August raid, diplomatic missions from 17 mostly European countries, including Britain and France, as well as the United Nations, condemned the Israeli operation and gathered at Al Haq’s office in a show of solidarity. 
Miriam Berger, Washington Post, 16 Sep. 2022 The operation took longer than expected and Carrell was removed about 6 p.m. Thursday. Caroline Silva, ajc, 16 Sep. 2022 Complicating the operation further are the heads of state and government leaders — including President Biden — who will begin descending on London as early as Friday, all with their own delegation and security requirements. Nabih Bulos, Los Angeles Times, 16 Sep. 2022 As of earlier this month, Texas had paid over $12 million to finance the migrant bussing operation, according to the state's division of emergency management. Camilo Montoya-galvez, CBS News, 15 Sep. 2022 But some questioned whether the military operation was being executed effectively. Evan Gershkovich, WSJ, 14 Sep. 2022 The two federal lawsuits filed last week say the pollutants released by the capsize of the Golden Ray and the harm caused by the subsequent salvage operation have damaged the area’s sensitive marine ecosystem – and the plaintiffs’ livelihoods. From Usa Today Network And Wire Reports, USA TODAY, 14 Sep. 2022 The Department of Justice is also seeking $2.3 million in property assets allegedly connected with the operation. Quinn Owen, ABC News, 14 Sep. 2022 Authorities dismantled the operation through Joint Task Force Alpha, which was formed last year in an effort to combat human trafficking. Howard Koplowitz | Hkoplowitz@al.com, al, 13 Sep. 2022 See More
Miriam Berger, Washington Post, 16 Sep. 2022 The operation took longer than expected and Carrell was removed about 6 p.m. Thursday. Caroline Silva, ajc, 16 Sep. 2022 Complicating the operation further are the heads of state and government leaders — including President Biden — who will begin descending on London as early as Friday, all with their own delegation and security requirements. Nabih Bulos, Los Angeles Times, 16 Sep. 2022 As of earlier this month, Texas had paid over $12 million to finance the migrant bussing operation, according to the state's division of emergency management. Camilo Montoya-galvez, CBS News, 15 Sep. 2022 But some questioned whether the military operation was being executed effectively. Evan Gershkovich, WSJ, 14 Sep. 2022 The two federal lawsuits filed last week say the pollutants released by the capsize of the Golden Ray and the harm caused by the subsequent salvage operation have damaged the area’s sensitive marine ecosystem – and the plaintiffs’ livelihoods. From Usa Today Network And Wire Reports, USA TODAY, 14 Sep. 2022 The Department of Justice is also seeking $2.3 million in property assets allegedly connected with the operation. Quinn Owen, ABC News, 14 Sep. 2022 Authorities dismantled the operation through Joint Task Force Alpha, which was formed last year in an effort to combat human trafficking. Howard Koplowitz | Hkoplowitz@al.com, al, 13 Sep. 2022 See More Word History
Etymology
Middle English operacion "work, action, procedure performed on a body, functioning," borrowed from Medieval Latin operātiōn-, operātiō, going back to Latin, "application of effort, functioning (of natural forces)," from operārī "to busy oneself, be at work" + -tiōn-, -tiō, suffix of action nouns — more at operate
First Known Use
14th century, in the meaning defined at sense 1
Time Traveler
The first known use of operation was in the 14th century Phrases Containing operation
noun¹
noun²
noun³
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