Part of speech: noun

A part of a circle bounded by two radii and the included arc.

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Usage examples "sector":

  1. This is Bill Hayes, of Sector Administration. - "Eight Keys to Eden", Mark Irvin Clifton.
  2. What's the Esaron Sector like? - "Time Crime", H. Beam Piper.
  3. They had come to build an outpost of human beings, to establish man's claim in this sector of the Universe. - "The Colonists", Raymond F. Jones.