closed-circuit television

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English

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Noun

closed-circuit television (plural closed-circuit televisions)

  1. A system of television cameras, connected by cable to a control room, used for surveillance.
    • 1963 January, “News and comment”, in Modern Railways, page 14:
      Holborn Underground Station, on London Transport's Piccadilly and Central Lines, has been equipped with closed-circuit television to help control passenger movement.

Synonyms

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