Definition of circuit

• an electrical device that provides a path for electrical current to flow
• a journey or route all the way around a particular place or area; "they took an extended tour of Europe"; "we took a quick circuit of the park"; "a ten-day coach circuit of the island"
• an established itinerary of venues or events that a particular group of people travel to; "shes a familiar name on the club circuit"; "on the lecture circuit"; "the judge makes a circuit of the courts in his district"; "the international tennis circuit"