Definition of sector in English:



  • 1An area or portion that is distinct from others.

    ‘operations in the southern sector of the North Sea’
    • ‘The negatives are related to the US, where rival luxury goods firms have been cutting prices - which is not the done thing in this portion of the sector.’
    • ‘There is an ambivalence in a peace settlement that large sectors of both populations oppose.’
    • ‘The southern sector of the Roundway Hospital site was redeveloped about five years ago and is now called Drews Park.’
    • ‘Services were proposed to be delivered to citizens in rural areas in the following sectors on a priority basis.’
    • ‘Illegal rooms have been constructed by city residents on open terraces of the existing block of flats in the entire belt of the southern sectors.’
    • ‘The costs of organizing at the European level may be especially onerous for the voluntary non-profit sector.’
    • ‘As Dr Eulenspiegel has rightly stated, these contributions encompassed a multiplicity of areas and sectors.’
    • ‘And certainly the GOP's ignoring of certain sectors of the population doesn't help.’
    • ‘Females that approached from the front and back sectors should have seen hoods and males at greater angular separations.’
    • ‘The belt of southern sectors from Sectors 31 to 49 and Sectors 20, 21, 22 and 23 were affected.’
    • ‘This led to flooding of a large number of sectors in northern as well as southern sectors of Chandigarh.’
    • ‘Some lawmakers questioned if those invited to take part in the two previous talks truly represented different sectors of society.’
    • ‘If we are to deliver sustainable growth for the bottom mussel sector will need the sector itself to be part of the decision making process.’
    • ‘He said that the Bobby Van targeted a vulnerable sector of society.’
    • ‘Combined they account for a huge portion of the beef sector which overall makes up about 90% of meat output in the Irish market.’
    • ‘What has happened is we've had this expedited return program in about four of the sectors along our southern border.’
    • ‘We need to continue to support the development of childcare places in community, private and workplace sectors based on local identified need.’
    • ‘In one of the southern sectors, one can admire the beautiful pink coloured landscape of cassias.’
    • ‘This silent divide will almost certainly lead to widening divisions in the sector based on individual and institutional privilege.’
    • ‘In many African cities, expatriates form a large part of the patronage sector of the local intelligentsia.’
    district, quarter, part, section, zone, precinct, borough, locality, neighbourhood, side
    View synonyms
    1. 1.1A distinct part or branch of a nation's economy or society or of a sphere of activity such as education.
      ‘the government aimed to reassure the industrial and commercial sector’
      • ‘However, all these countries face substantial costs in reforming their banking sectors.’
      • ‘Until recently, the seemingly unstoppable tech sector accounted for about 30 % of the country's economic growth.’
      • ‘The food industry is also an important sector contributing 15 per cent of total industrial output.’
      • ‘They also protested against government plans to privatise the public health sector.’
      • ‘What institutions operated in the informal banking sector and how did they operate?’
      • ‘As a result, the private education services sector is growing at around 30 percent per annum.’
      • ‘And the vastness of this market is not lost on the world's solar energy technology sector.’
      • ‘Not that the financial services sector had been slow in its technology uptake.’
      • ‘Today's announcement is the latest in a series of job blows for the Bradford manufacturing sector over recent years.’
      • ‘Computer maker Dell has boosted the tech sector by raising its third-quarter revenue guidance to $9.1 billion.’
      • ‘He said the Hub development could have missed the economic boom that boosted the technology sector in recent years.’
      • ‘What initiatives has the Government implemented to build capacity in the Maori tourism business sector?’
      • ‘The manufacturing sector of the economy is likely to continue its relative economic decline.’
      • ‘The debacle threatens to stymie the country's dynamic agricultural sector.’
      • ‘How much private sector involvement is there in trying to deal with computer-related crimes?’
      • ‘My other amendment raises the issue of whether we really value our export education sector.’
      • ‘China's traditional handicraft sector grew slowly but steadily until the silver crisis of the early 1930s.’
      • ‘So far this year, the retail sector has accounted for 14 percent of all job growth.’
      • ‘Women at the top in the retail sector of the motor industry are a rarity.’
      • ‘The country's agricultural sector only contributes 15 percent to GDP.’
      • ‘The retail and agriculture sectors accounted for the highest concentration at 39 per cent and 33 per cent respectively.’
      part, branch, arm, division, subdivision, area, department, category, field, sphere, layer, stratum, corner
      View synonyms
    2. 1.2Military A subdivision of an area for military operations.
      • ‘The UN has split southern Sudan into six sectors, which will be controlled by different troop contributing countries.’
      • ‘The First Battalion of the Black Watch is based in the British sector of southern Iraq, near Basra.’
      • ‘However, Cork faced one major obstacle - the German troops freed up in the southern sectors of Norway, could now help the German troops around Narvik.’
      • ‘Smith described the fighting in the southern sector as heavy with ‘lots of casualties’ among al-Qaida forces.’
      • ‘He found himself in Jallas area of Poonch sector inside the Indian territory near the Line of Control.’
      • ‘This flight concentrated on the role usually played by the helicopter over the southern sector in response to naval tasking.’
    3. 1.3Computing A subdivision of a track on a magnetic disk.
      • ‘The search is complete: the hard disk knows what sector, on what track, on what platter the data resides.’
      • ‘The boot sector is the portion of the hard disk that points the way to the operating system when a machine is powered up.’
      • ‘With the appropriate tools, you can create diskettes that have 80 sectors and 24 tracks per sector, giving 1,920KB per floppy.’
      • ‘In other words, you do not have to worry about the cylinder, track or sector configuration of the disk drives.’
      • ‘The last twelve sectors store 24,576 bytes of Media Key Block data called an MKB Pack.’
  • 2The plane figure enclosed by two radii of a circle or ellipse and the arc between them.

    • ‘Each group was made up of units designated by letters, which were then assigned appropriate sectors on circles of different sizes.’
    • ‘Kepler, in his work on planetary motion, had to find the area of sectors of an ellipse.’
    • ‘For example, Figure 4a shows three such rings formed from the sectors and rectangle in Figure 3a.’
    • ‘We previously used a simple diagram showing a very small number of sectors.’
    • ‘The protein molecules are modeled as 120 deg sectors of a circle.’
  • 3A mathematical instrument consisting of two arms hinged at one end and marked with sines, tangents, etc. for making diagrams.

    • ‘He also learned on his own how to use a compass, sector, and other instruments to make astronomical predictions, including that of eclipses.’


Late 16th century (in sector, sector): from late Latin, a technical use of Latin sector cutter, from sect- cut off, from the verb secare.