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English definition of “circuit”

circuit

noun [C]     /ˈsɜːkɪt/
IT a path for an electric current to flow through: The most advanced chip technology, which uses circuits 65 nanometers apart, loses almost half of its power to leakage. an electrical/electronic circuit → See also integrated 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 business ethics.
(Definition of circuit noun from the Cambridge Business English Dictionary © Cambridge University Press)
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