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sec·tor  audio  (sktr, -tôr) KEY 

NOUN:
  1. Mathematics
    1. The portion of a circle bounded by two radii and the included arc.
    2. A measuring instrument consisting of two graduated arms hinged together at one end.
    1. A division of a defensive position for which one military unit is responsible.
    2. A division of an offensive military position.
  2. A part or division, as of a city or a national economy: the manufacturing sector; the private sector.
  3. Computer Science A portion of a magnetic storage device making up the smallest addressable unit of information.
TRANSITIVE VERB:
sec·tored, sec·tor·ing, sec·tors
To divide (something) into sectors.

ETYMOLOGY:
Late Latin, from Latin, cutter, from sectus, past participle of secre, to cut; see sek- in Indo-European roots

OTHER FORMS:
sec·tori·al  (-tôr-l, -tr-) KEY (Adjective)


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