sector

Section

Zone (designated area).

Part of a circle, extending to the center

Fixed-sized unit (traditionally 512 bytes) of sequential data stored on a track of a digital medium (compare to block)

An area designated by boundaries within which a unit operates, and for which it is responsible

One of the subdivisions of a coastal frontier

A fictional region of space designated for navigational or governance purposes.

(calculation) an instrument consisting of two rulers of equal length joined by a hinge.

A field of economic activity

A toothed gear whose face is the arc of a circle.

A fixed, continuous section of the track, such that sectors do not overlap but all sectors make up the whole track.