AskDefine | Define sector

Dictionary Definition



1 a plane figure bounded by two radii and the included arc of a circle
2 a body of people who form part of society or economy; "the public sector"
3 a particular aspect of life or activity; "he was helpless in an important sector of his life" [syn: sphere]
4 the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes
5 a portion of a military position
6 measuring instrument consisting of two graduated arms hinged at one end

User Contributed Dictionary



  1. section
  2. zone
  3. A part of a circle, extending to the center.
  4. a fixed-sized unit (traditionally 512 bytes) of sequential data stored on a track of a digital medium (compare to block)
  5. An area designated by boundaries within which a unit operates, and for which it is responsible.
  6. One of the subdivisions of a coastal frontier.
  7. a fictional region of space designated for navigational or governance purposes; for instance, W:Sector (Star Trek), W:List of Star Wars sectors

Derived terms


part of circle
fixed-sized unit of sequential data storage
military operation area


Extensive Definition

Sector may refer to:
in computing:
  • Cylinder-head-sector (or "CHS"), an early method for giving addresses to each physical block of data on a hard drive
  • Disk sector, a physical subdivision of space on a computer disk-storage medium, specifically a subdivision of a "track"
  • in portal rendering, a convex polygonal segment of map-space used to facilitate calculation of the visibility of objects in a computer display
geographic subdivisions generally referred to as "sectors":
fictional uses:
  • Sector (Star Trek), a fictional area of space-designation used in the Star Trek universe for interstellar navigation

See also

sector in Danish: Sektor
sector in German: Sektor
sector in Spanish: Sector
sector in French: Secteur
sector in Dutch: Sector
sector in Japanese: セクター
sector in Russian: Сектор
sector in Swedish: Sektor

Synonyms, Antonyms and Related Words

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