Definition of operation in English:

operation

noun

  • 1The fact or condition of functioning or being active.

    ‘the construction and operation of power stations’
    ‘some of these ideas could be put into operation’
    • ‘Monitoring over the coming months will evaluate the effectiveness in operation and safety.’
    • ‘They will be used initially by Derbyshire police force, which hopes to have its system in operation by mid-2002.’
    • ‘The company has eight power plants in operation and seven under construction.’
    • ‘At their peak 20,000 trolleybuses, which run on wheels and are powered by overhead electric cables, were in operation in the UK.’
    • ‘Speed restrictions are in operation at the moment to ensure that the tracks are safe whilst the checking is completed.’
    • ‘These mechanisms and powers are always in operation even when empirically the rate of profit is rising.’
    • ‘The task force will be in operation until May 20 when the newly-elected president takes office.’
    • ‘By 1812 Jefferson had three threshing machines in operation, two powered by horses and one by a waterwheel.’
    • ‘Tested on a track in Italy, they proved both smooth and very effective in operation and bring worthwhile safety advances.’
    • ‘In fact, there are two conflicting economies in operation in Britain.’
    • ‘There will also be a rental scheme in operation for owners, a fact which may spark a good deal of Irish investor interest.’
    • ‘That force is still in operation until you cancel it out.’
    • ‘There are about 17 million energised tube wells in operation all over India running on subsidized power or diesel.’
    • ‘The provincial power shortage will be eased when the Tianwan Nuclear Power Plant is put into operation at the end of this year, he said.’
    • ‘Agents say the tunnel had been under construction for nearly a year and was recently put into operation.’
    • ‘Since 1997, some 40 hospitals and 550 schools are under construction or in operation.’
    • ‘But the new powers will not be in operation in York until next month and will only apply to cars of no value that have been vandalised or torched.’
    • ‘In fact one has been in operation near Helston, Cornwall, for at least 12 months.’
    • ‘Maybe I don't but there needs to be work done even if just to prove that the Placebo effect is in operation.’
    • ‘Does that mean that the small hilly State has effectively put into operation a strong system of education?’
    functioning, working, running, performance, action, behaviour
    functioning, working, running, up and running, operative, in use, in action, going
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    1. 1.1 An active process; a discharge of a function.
      ‘the operations of the mind’
      • ‘The literature on chain ownership's effects on editorial page functions and operations is divided.’
      • ‘About 170 lines control the sails and yards, so every member of the crew must be familiar with these operations and functions.’
      • ‘The Central government prohibited a number of processes and operations, except with its prior permission.’
      • ‘The attorney general really has no direct relation to the operation and function of the election operations in each of these counties.’
      • ‘The software's main advantage is its ability to be user-friendly, while handling complex processing operations in the background.’
      • ‘Judge Mick Brown did an excellent job of reviewing the functions and operations of the department.’
      • ‘Topics ranged from fuels for missile operations to human bodily functions in space.’
      • ‘As we said last November, they're not mentioned in the Reserve Bank Act 1959 or its own overview of its functions and operations.’
      • ‘In the context of the native-title process, and the operations of state bureaucracy in general, mind is privileged over body.’
      • ‘Functional neuroimaging purports to offer just such a direct window on the mind's operations.’
      • ‘No button and keyboard can be found and all the operations can be functioned by vocal message.’
      • ‘There is nothing like an arbitrary set of symbols to fix the operations of the mind.’
      • ‘The laws that empower the minister of Local Government to regulate the operations and functions of local authorities are still in place.’
      • ‘I think we need really a significant shake-up, and a change in the processes and operations of the agency.’
      • ‘At their peak in 1994, there were over twenty such active operations.’
      • ‘There is a central reporting mechanism for the operations but the functions are run in a fragmented manner across the different markets.’
      • ‘Identify the key functions and their inter-dependencies with other operations so that you can prioritise the recovery process.’
      • ‘Because these operations discharge uneaten food, pesticides and fish waste into the ocean, they need permits.’
      • ‘The PCS runs its own applications, which have very little to do with the actual main function operations in a module.’
      • ‘The post incineration process includes six cleansing operations to remove pollutants from the flue gasses.’
  • 2An act of surgery performed on a patient.

    • ‘To avoid this problem, some surgeons perform coronary bypass operations on beating hearts.’
    • ‘Cardiac surgical procedures are among the most commonly performed operations in the United States.’
    • ‘They not only provide preventive and basic curative health care but also perform family planning procedures and other surgical operations.’
    • ‘The operation is performed under cardiopulmonary bypass and deep hypothermia.’
    • ‘You may also be asked to avoid eating or drinking from the evening before the surgery until the operation is complete.’
    • ‘The unit will be able to correct various visual problems and perform life-changing operations that will allow patients to see again.’
    • ‘Doctors abandoned up to a dozen heart operations, including by-pass surgery, after the blunder was discovered last Thursday.’
    • ‘This complication is dependent upon the general state of health of the patient and the extent of the operation performed.’
    • ‘We did not study in detail whether the change in sexual activity before and after hysterectomy was related to the operation performed or to other circumstances in life.’
    • ‘In the past three months, the hospital has treated 26,000 patients and performed 300 operations.’
    • ‘The hospital where he treated patients and performed operations is no more.’
    • ‘As surgery becomes more precise, faster and safer, related operations are more frequently performed at the same time.’
    • ‘Vasectomy can easily be performed as an outpatient operation under local anaesthetic.’
    • ‘One of the commonest operations performed in Australia is gall bladder removal: the cholecystectomy, usually for gall stones.’
    • ‘Patients can visit day surgery units for small operations and be allowed to return home later in the day or evening.’
    • ‘It provides a solution to the old problem of what legal rule allows a casualty surgeon to perform an urgent operation on an unconscious patient who is brought into hospital.’
    • ‘Doctors are so scared of being sued that many will refuse to treat high-risk patients or perform difficult operations, medical experts have warned.’
    • ‘In the present study, all operations were performed by one surgeon, avoiding variation in surgical technique as a cause of altered blood loss.’
    • ‘The scheme will then be rolled out to reduce the backlog of patients waiting for other operations such as cataract surgery or hip and knee replacements.’
    • ‘The operation is performed in an operating theatre while you are lying down on your back.’
    surgery, surgical operation, surgical intervention, major surgery, minor surgery
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  • 3A piece of organized and concerted activity involving a number of people, especially members of the armed forces or the police.

    ‘a rescue operation’
    ‘military operations’
    • ‘It would direct defensive military operations should the United States be attacked.’
    • ‘Stalin at first panicked, but then assumed personal control over military operations.’
    • ‘I'm willing to give greater powers to an intelligence director provided we do not give him the power to direct military operations.’
    • ‘Second, relief operations run by the military carry the risk that they become a ruse to conduct military operations under the guise of supposedly providing assistance.’
    • ‘But first, we begin with two military operations, both of which may be tainted somewhat with controversy.’
    • ‘Because assassination is an act of war, such activities should always be considered a military operation.’
    • ‘He plans to do this by giving control of military operations and lucrative contracts to the United Nations.’
    • ‘His leadership combined military operations, government administration, and economic management.’
    • ‘The government often retaliates with military operations and air strikes.’
    • ‘Before the recent military operations began in Afghanistan doubters claimed that the enterprise would end in disaster, but the coalition's aims were all met.’
    • ‘The official avoided making specific comments on the possibility of a U.S.-led military operation to rescue Koda.’
    • ‘The CPS is responsible for ‘political control and strategic management’ during military operations.’
    • ‘In other countries, media are simply banned from covering military operations except for passing on government statements.’
    • ‘Mercado said four soldiers have so far been wounded in the military rescue operation launched by the government in the early hours of Saturday.’
    • ‘On the ground, peacekeeping operations demonstrate the broadening functions of armies.’
    • ‘Tribals, incensed by the military operations, could reject the dominion of the federal government.’
    • ‘Arguably they are too late, since the unprecedented military operation staged to rescue her was itself a made for-TV movie directed by the Pentagon.’
    • ‘In November, the Indian government announced that military operations against the guerrilla groups were unilaterally halted.’
    • ‘He has also noted that about half the cases this year occurred during active hostilities or combat operations in the Persian Gulf.’
    • ‘Previously the US has had problems with countries not letting them use their bases for military operations and in directly deploying troops to war zones.’
    action, activity, exercise, affair, business, undertaking, step, enterprise, task, job, process, procedure, manoeuvre, campaign
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    1. 3.1 A business organization; a company.
      ‘he reopened his operation under a different name’
      • ‘One method allows organic dairy operations to employ a one-year conversion.’
      • ‘Businesses can range from a one-person operation through to those employing a sizeable workforce.’
      • ‘Two of the bee keepers ran commercial operations involving as many as 800 hives, while many of the rest ran about 20 hives each.’
      • ‘Most companies have not made the transition from being multi-region organizations to truly global operations.’
      • ‘But too many traditional members' golf clubs fail to recognise that most of Scotland's new courses are commercial operations run as leisure businesses.’
      • ‘Estate agents are being offered the chance to turn their businesses into round-the-clock operations, selling homes during both the day and night.’
      • ‘That nice couple operate a dial-a-driver business as a part-time operation.’
      • ‘Des, struggling to establish his new business as a one-man operation, gets to grips with new briefs - and not just the legal kind.’
      • ‘Today, the companies are vastly different operations and producing returns at opposite ends of the scale for their owners.’
      • ‘They recently opened a second operation in a different part of Dobsonville, and their business continues its phenomenal growth.’
      • ‘Although starting up an e-tailing operation often makes good business sense, it can make for a bear of a rollout.’
      • ‘Migrants from other islands working for the mining operation or smaller businesses are people who have been accustomed to working hours.’
      • ‘Inquiries about a private operation produced an estimate of £19,000.’
      • ‘Skip forward six months and we find a much different biodiesel-making operation.’
      • ‘At the lower levels of business activities within this sector are very small operations that employ as few as five employees at maximum.’
      business, enterprise, company, firm, organization, concern
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    2. 3.2 An activity in which a business is involved.
      ‘the company is selling most of its commercial banking operations’
      • ‘For the past year, the company has been putting in place the foundations of change, planning changes to its commercial operations and its style that it hopes will turn the business around.’
      • ‘The daily operations of American business have assumed a criminal character.’
      • ‘The company undergoing Chapter 11 expects to return to normal business operations and sound financial health in the future.’
      • ‘China is of particular interest to HSBC, which will continue to use Hong Kong as the base for its banking operations.’
      • ‘I'm not really involved in the day-to-day operations of the business, but I'm trying to get more and more involved.’
      • ‘Participants in the program not only learn how to bake, serve food, and the basic operations of running a business, they also learn how to do laundry, banking and shop.’
      • ‘The LDC undertakes all commercial operations for the benefit of the Larrakia people.’
      • ‘Proxy voting is often the sole means by which investors can have a say in the business operations and societal activities of their company or mutual fund.’
      • ‘The business is now mature enough for him to leave day-to-day operations to a management team.’
      • ‘The innovator innovates, only to end up managing the mundane day-to-day operations of a company.’
      • ‘They are long on management talent and typically expect to be involved in the day-to-day operations of acquired businesses.’
      • ‘The company will locate most of its back office functions for its operations in Europe, Middle East, Africa and Asia in Dublin.’
      • ‘The parent firm in France will increase its holding in Thai operations and the company is trying to catch the wave of returning consumer confidence.’
      • ‘A franchisee by contrast will have far less freedom in the day-to-day operations of the business.’
      • ‘He called on the government to help reschedule loan repayments for those businesses with solid operations and good credit.’
      • ‘Hence, its staff members had not developed and acquired adequate skills in those two core elements of banking operations.’
      • ‘The sequence of banking operations involved in payment turns, in part, on whether there is a credit transfer or debit transfer.’
      • ‘For the last twelve months or so a trial milking program has been undertaken to test the feasibility of a commercial operation later on.’
      • ‘Shops closed for business and normal operations ceased as close family gathered for the moving repatriation ceremony.’
      • ‘Not so long ago - three or four years - online operations were a business afterthought at newspapers.’
    3. 3.3 Preceding a code name for an organized military or police activity.
      ‘Operation Desert Storm’
      • ‘This deployment is referred to as Operation Iraqi Freedom Three.’
      • ‘By launching Operation Market Garden, Field Marshal Montgomery had hoped to end the war by Christmas 1944.’
      • ‘A new NATO operation is underway in Afghanistan: Operation Get the Vote Out.’
      • ‘Owen West served with the Marines in Operation Iraqi Freedom.’
      • ‘Prevention is a big Operation Enduring Freedom success.’
      • ‘A team of 80 volunteers will leave Shannon Airport on Friday as part of the Chernobyl Children's Project, Operation Hope XVI.’
      • ‘This time it's called Operation Desert Scorpion.’
      • ‘Children at St Mark's Primary School in Danebury Road were busy in the run-up to Christmas, collecting gifts for Operation Christmas Child.’
      • ‘His USO tours criss-crossed the globe, from jungles to war zones, from World War II to Operation Desert Storm.’
      • ‘He sure did us proud as a commander of Operation Desert Storm.’
      • ‘Codenamed Operation Green it was led by the Chief Constable of West Midlands Police, Sir Edward Crew.’
      • ‘The first Operation Iraqi Freedom Medal of Honor nominee was named today.’
      • ‘First item on the agenda is Operation Lady in Red.’
      • ‘All this is in the name of Operation Enduring Freedom.’
      • ‘Canada sent a battalion to Afghanistan for Operation Enduring Freedom.’
      • ‘More than 75 Camp Pendleton Marines have sacrificed their lives in Operation Iraqi Freedom.’
      • ‘Thus, I have started Operation Make a Soldier Smile.’
      • ‘Three road blocks were set up, in London Road, Swanscombe, Crooked Road and Rochester Road, in Gravesend, as part of drug-busting Operation Carrot.’
      • ‘Thanks once again to The General for dreaming up Operation Yellow Elephant.’
      • ‘Please head over to Operation Give if you've got a minute.’
  • 4Mathematics
    A process in which a number, quantity, expression, etc., is altered or manipulated according to formal rules, such as those of addition, multiplication, and differentiation.

    • ‘Is she over-generalizing the order of operations, thinking that multiplication takes precedence over division?’
    • ‘That is addition, multiplication and the two inverse operations of subtraction and division.’
    • ‘For example, one can have a group in which the objects are numbers and the combining operation is addition or multiplication.’
    • ‘Problems can be created to cover all math operations of addition, subtraction, multiplication and division!’
    • ‘The inverse of an operation undoes the operation: division undoes multiplication.’

Origin

Late Middle English: via Old French from Latin operatio(n-), from the verb operari ‘expend labor on’ (see operate).

Pronunciation

operation

/ˌɑpəˈreɪʃ(ə)n//ˌäpəˈrāSH(ə)n/