sector
noun
[ ˈsɛktə ]
• an area or portion that is distinct from others.
• "operations in the southern sector of the North Sea"
Similar:
district,
quarter,
part,
section,
zone,
precinct,
borough,
locality,
neighbourhood,
side,
province,
territory,
division,
region,
area,
belt,
tract,
locale,
hood,
• the plane figure enclosed by two radii of a circle or ellipse and the arc between them.
• a mathematical instrument consisting of two arms hinged at one end and marked with sines, tangents, etc. for making diagrams.
Origin:
late 16th century (in sector (sense 2, sense 3)): from late Latin, a technical use of Latin sector ‘cutter’, from sect- ‘cut off’, from the verb secare .
