Definition of "closed-circuit" [closed-circuit]

• That consists of a closed circuit (adjective)

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• "There are air-conditioned offices, a kitchen and a waiting area fitted with closed-circuit cameras."
• "The use of closed-circuit television in city and town centres and public housing estates does not have a significant effect on crime, according to Home Office-funded research to be distributed to all police forces in England and Wales this summer."
• "First thing Bobby did when he came to retrieve me was ask for the closed-circuit cameras tapes."