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Definition of “circuit” - English Dictionary

"circuit" in American English

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circuitnoun [C]

 us   /ˈsɜr·kət/
  • circuit noun [C] (CLOSED SYSTEM)

physics a ​closedsystem esp. of ​wires through which ​electricity can ​flow: Bigelectronic circuits can ​carryhugeamounts of ​data. A circuit is also a ​system that ​allowspeople to ​communicate with each other: Holiday ​phonecalls always ​overload the circuits.
  • circuit noun [C] (CIRCLE)

something ​shaped like a ​circle, esp. a ​route, ​path, or ​sportstrack that ​starts and ​ends in the same ​place: She has ​ridden on ​toughracing circuits such as the New York and Florida ​tracks. A circuit can be a ​path or ​route in the ​shape of a ​circle: Fish ​swamcontinuously, making the ​endless circuit of the ​tank.
  • circuit noun [C] (SERIES)

a ​regularseries of ​events that ​happen in different ​places: She has ​won a ​number of ​tournaments on this year’s ​tennis circuit.
  • circuit noun [C] (LEGAL AREA)

an ​area under the ​authority of a ​particularcourt
circuitry
noun [U]  us   /ˈsɜr·kə·tri/
the ​connectedarrangement of the ​wires and other ​parts of a ​closedsystem through which ​electricity can ​flow: The circuitry in this ​computer is ​protected from ​powersurges.
(Definition of circuit from the Cambridge Academic Content Dictionary © Cambridge University Press)







"circuit" in British English

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circuitnoun

uk   /ˈsɜː.kɪt/  us   /ˈsɝː-/
  • circuit noun (VISITS)

C2 [C] a ​regularpattern of ​visits or the ​placesvisited: They first ​met each other on thetennis circuit (= while at different ​tennis competitions). He was a ​familiarfigure on thelecture circuit. [C] specialized law a ​particularareacontaining different ​courts that a ​judgevisits: The ​judge had ​served for many ​years on thenortheastern Circuit. a circuit judge

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  • circuit noun (CLOSED SYSTEM)

C2 [C] a ​closedsystem of ​wires or ​pipes through which ​electricity or ​liquid can ​flow: A ​defect was ​found in the water-cooling/​electrical circuit.
(Definition of circuit from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

"circuit" in Business English

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circuitnoun [C]

uk   us   /ˈsɜːkɪt/
IT a path for an electric ​current to ​flow through: The most ​advancedchiptechnology, which uses circuits 65 nanometers apart, ​loses almost half of its ​power to ​leakage. an electrical/​electronic circuit
a ​series of ​events or ​places that are ​regularly visited by a particular ​group of ​people: a lecture/conference/speaking circuit For the past two ​years he has been on the ​international lecture circuit, often speaking on ​businessethics.
(Definition of circuit from the Cambridge Business English Dictionary © Cambridge University Press)
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“circuit” in Business English

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