Meaning & Definition of Sector in English

1. A plane figure bounded by two radii and the included arc of a circle

2. A social group that forms part of the society or the economy

• "The public sector"

3. A particular aspect of life or activity

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

4. The minimum track length that can be assigned to store information

• Unless otherwise specified a sector of data consists of 512 bytes

5. A portion of a military position

6. Measuring instrument consisting of two graduated arms hinged at one end