Definitions
1.nounSection
2.nounZone (designated area).
3.nounPart of a circle, extending to the center
4.nounFixed-sized unit (traditionally 512 bytes) of sequential data stored on a track of a digital medium (compare to block)
5.nounAn area designated by boundaries within which a unit operates, and for which it is responsible
6.nounOne of the subdivisions of a coastal frontier
7.nounA fictional region of space designated for navigational or governance purposes.
8.noun(calculation) an instrument consisting of two rulers of equal length joined by a hinge.
9.nounA field of economic activity"public sector; private sector"
10.nounA toothed gear whose face is the arc of a circle.
11.nounA fixed, continuous section of the track, such that sectors do not overlap but all sectors make up the whole track.