circuit
noun [ C ]
uk/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.