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closed-circuit television

noun

  1. a system of televising by cable to designated viewing sets, as within a factory for monitoring production operations, in a theater for viewing a special event taking place elsewhere, or in an office building as an aid to maintaining security.

closed-circuit television

noun

  1. a television system in which signals are transmitted from a television camera to the receivers by cables or telephone links forming a closed circuit, as used in security systems, etc

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Word History and Origins

Origin of closed-circuit television1

First recorded in 1945–50

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Example Sentences

There were no closed-circuit television cameras operating in the area near the blast.

I'll probably stick to electric-eye doors, burglar alarms, closed-circuit television systems and things like that.

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