circuit
/ˈsɜr·kət/ n [C] (CLOSED SYSTEM)Definition
› physics a closed system esp. of wires through which electricity can flow: Big electronic circuits can carry huge amounts of data. › A circuit is also a system that allows people to communicate with each other: Holiday phone calls always overload the circuits. circuitry /ˈsɜr·kə·tri/ n [U] › the connected arrangement of the wires and other parts of a closed system through which electricity can flow: The circuitry in this computer is protected from power surges.
(Definition of circuit n (CLOSED SYSTEM) from the Cambridge Academic Content Dictionary
© Cambridge University Press)
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