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sector

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noun sec·tor \ ˈsek-tər , -ˌtȯr \
Updated on: 11 Sep 2017

Definition of sector

1 a :a geometric figure bounded by two radii and the included arc of a circle
b (1) :a subdivision of a defensive military position
(2) :a portion of a military front or area of operation
c :an area or portion resembling a sector
  • bilingual sector of town
  • —David Kleinberg
d :a sociological, economic, or political subdivision of society
  • cooperation between the public and private sectors
  • —Peter Chapman
2 :a mathematical instrument consisting of two rulers connected at one end by a joint and marked with several scales
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.

Recent Examples of sector from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sector.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of sector

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


2

sector

play
verb sec·tor \ ˈsek-tər \

Definition of sector

sectored; sectoring play \ˈsek-t(ə-)riŋ\
transitive verb
:to divide into or furnish with sectors

Recent Examples of sector from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sector.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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

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


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