Dictionary
closed–circuit
adjective closed–cir·cuit \-ˈsər-kət\
—used to describe a television system that sends its signal through wires to a limited number of televisions
Full 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
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First Known Use of CLOSED-CIRCUIT
1949
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