SECTOR

Definition

1. noun a plane figure bounded by two radii and the included arc of a circle.
2. noun a social group that forms part of the society or the economy.
3. noun a particular aspect of life or activity. — synonyms: sphere
4. noun the minimum track length that can be assigned to store information.
5. noun a portion of a military position.
6. noun measuring instrument consisting of two graduated arms hinged at one end.