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English definition of “closed-circuit television”

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closed-circuit television

noun [U] uk   /ˌkləʊzd.sɜː.kɪtˈtel.ɪ.vɪʒ.ən/ us    /ˌkloʊzd.sɝːkɪtˈtel.ə-/ ( abbreviation CCTV)
a system that sends television signals to a limited number of screens and is often used in shops as protection against thieves
(Definition of closed-circuit television from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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