sector

The definition of a sector is a separate or distinct area or part of something larger.

(noun)

The part of the economy controlled by technology companies is an example of the tech sector.

See sector in Webster's New World College Dictionary

noun

part of a circle bounded by any two radii and the arc included between them
a mathematical instrument consisting of two rulers marked with various scales and jointed together at one end, used in solving problems, measuring angles, etc.
any of the districts into which an area is divided for military operations
a distinct part of society or of an economy, group, area, etc.; section; segment

Origin: LL < L, cutter < sectus, pp. of secare, to cut: see saw

transitive verb

to divide into sectors

Related Forms:

See sector in American Heritage Dictionary 4

noun

Mathematics
a. The portion of a circle bounded by two radii and the included arc.
b. A measuring instrument consisting of two graduated arms hinged together at one end.
a. A division of a defensive position for which one military unit is responsible.
b. A division of an offensive military position.
A part or division, as of a city or a national economy: the manufacturing sector; the private sector.
Computer Science A portion of a magnetic storage device making up the smallest addressable unit of information.