sector
1. [ noun ] (mathematics,geometry) a plane figure bounded by two radii and the included arc of a circle
Related terms: plane_figure arc
2. [ noun ] a body of people who form part of society or economy
Examples:

"the public sector"

Related terms: body business black_economy society economy
3. [ noun ] a particular aspect of life or activity
Synonyms: sphere
Examples:

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

Related terms: aspect department
4. [ noun ] (computer science) the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes
Related terms: computer_memory_unit allocation_unit block
5. [ noun ] (military,geography) a portion of a military position
Related terms: tract battlefield military
6. [ noun ] measuring instrument consisting of two graduated arms hinged at one end
Related terms: measuring_instrument
Similar spelling:   sectorial
  Sester
  Sectral
  sectary
  sectarist
  sectarian