DictionarysectorDistinct division
noun

sector

SEK-ter/ˈsektər/

A defined subdivision of a larger area.

The highlighted wedge marks one sector of the circular map.

A circular map split into sectors with one wedge highlighted.
Etymology

The pieces literally yield “one who cuts,” but Latin sector also named a section of a circle. That geometric division broadened to an area or division regardless of shape, and then to an economic branch.

In context

The Scottish Parliament91:53
the agriculture sector is a thriving part of the economy, which helps to tackle climate change, protects biodiversity and, most importantly, puts food on plates.
Rural Affairs and Islands Committee Debate: Future Agriculture Policy in Scotland - 25 May 2023

More examples

  • She works in the private sector.
  • Two radii and the arc between them bound a sector.
  • One damaged sector makes part of the disk unreadable.

Forms

sector · sectors

sectoral adjective — Relating to a particular sector.

Similar words

section
A general part, without necessarily having formally defined boundaries.
zone
An area distinguished by its purpose, conditions, or restrictions.
division
Often an organizational unit with its own responsibilities.