Sector

(plural sectors)

Section.
Zone (designated area).
(geometry) A part of a circle, extending to the center.
(computing) A fixed-sized unit (traditionally 512 bytes) of sequential data stored on a track of a digital medium (compare to block).
(military) An area designated by boundaries within which a unit operates, and for which it is responsible.
(military) One of the subdivisions of a coastal frontier.
(science fiction) A fictional region of space designated for navigational or governance purposes; for instance, , .
(calculation) An instrument consisting of two rulers of equal length joined by a hinge.

2013-06-28, Joris Luyendijk, Our banks are out of control, Seeing the British establishment struggle with the financial sector is like watching an alcoholic who still resists the idea that something drastic needs to happen for him to turn his life around. Until 2008 there was denial over what finance had become. When a series of bank failures made this impossible, there was widespread anger, leading to the public humiliation of symbolic figures.