closed-circuit

adjective
closed-cir·cuit | \-ˈsər-kət \

Definition of closed-circuit 

: used in, shown on, or being a television installation in which the signal is transmitted by wire to a limited number of receivers

First Known Use of closed-circuit

1949, in the meaning defined above

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The first known use of closed-circuit was in 1949

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closed-circuit

adjective

English Language Learners Definition of closed-circuit

—used to describe a television system that sends its signal through wires to a limited number of televisions

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