1

sector

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noun sec·tor \ˈsek-tər, -ˌtȯr\

Definition of sector

  1. 1a :  a geometric figure bounded by two radii and the included arc of a circleb (1) :  a subdivision of a defensive military position (2) :  a portion of a military front or area of operationc :  an area or portion resembling a sector bilingual sector of town — David Kleinbergd :  a sociological, economic, or political subdivision of society cooperation between the public and private sectors — Peter Chapman

  2. 2 :  a mathematical instrument consisting of two rulers connected at one end by a joint and marked with several scales

  3. 3 :  a subdivision of a track on a computer disk

sectoral

\ˈsek-t(ə-)rəl\ adjective

Examples of sector in a Sentence

  1. He was assigned to the northern sector.

  2. Data is stored on the disk in 512-byte sectors.

Origin and Etymology of sector

Late Latin, from Latin, cutter, from secare to cut — more at saw


2

sector

play
verb sec·tor \-tər\

Definition of sector

sectored

;

sectoring

play \-t(ə-)riŋ\
  1. transitive verb
  2. :  to divide into or furnish with sectors

First Known Use of sector

1884



SECTOR Defined for English Language Learners

sector

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noun

Definition of sector for English Language Learners

  • : an area of an economy : a part of an economy that includes certain kinds of jobs

  • : an area for which someone (such as a military commander) is responsible

  • computers : one of the parts that a computer disk is divided into


SECTOR Defined for Kids

sector

play
noun sec·tor \ˈsek-tər\

Definition of sector for Students

  1. :  a part of an area or of a sphere of activity the industrial sector of the economy



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