noun sec·tor \ˈsek-tər, -ˌtr\

: 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

Full Definition of SECTOR

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>
:  a mathematical instrument consisting of two rulers connected at one end by a joint and marked with several scales
:  a subdivision of a track on a computer disk
sec·tor·al \ˈsek-t(ə-)rəl\ adjective

Examples of SECTOR

  1. He was assigned to the northern sector.
  2. Data is stored on the disk in 512-byte sectors.

Origin of SECTOR

Late Latin, from Latin, cutter, from secare to cut — more at saw
First Known Use: 1570

Rhymes with SECTOR


transitive verb sec·tor \-tər\
sec·toredsec·tor·ing \-t(ə-)riŋ\

Definition of SECTOR

:  to divide into or furnish with sectors

First Known Use of SECTOR

SECTORAL Defined for Kids


noun sec·tor \ˈsek-tər\

Definition of SECTOR for Kids

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


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