1.Definition: a particular aspect of life or activity

"He was helpless in an important sector of his life"

Related Noun(s):sphere

Category: General

2.Definition: a plane figure bounded by two radii and the included arc of a circle

Category: General

3.Definition: a portion of a military position

Category: Places

4.Definition: a social group that forms part of the society or the economy

"The public sector"

Category: General

5.Definition: measuring instrument consisting of two graduated arms hinged at one end

Category: Objects

6.Definition: the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes

Category: General