Definition of circuit in English:



  • 1A roughly circular line, route, or movement that starts and finishes at the same place.

    ‘I ran a circuit of the village’
    • ‘The planes end up flying circuits around Perth to burn up fuel or to dump fuel on arrival.’
    • ‘Little buggies do circuits round the island as golfers try to discover what's going on.’
    • ‘She had just finished her circuit of the room, when she realized that nothing else had caught her eye.’
    • ‘In the real tour, 11 circuits of the Champs Elysees are expected to climax in a mass sprint for what has become one of the most prestigious victories in professional cycling.’
    • ‘We boarded the Moorsbus at Cropton, leaving the village buzzing with a group of 30 or more ramblers off to do a local circuit.’
    • ‘The walk route is a 1km circuit around the park, so you can do as many laps as you like.’
    • ‘We have a witness who was driving a circuit route around this part of the Island.’
    • ‘He finished a circuit around the main square.’
    • ‘Grunting, he picked up one sack, bearing it with him as he finished the circuit of the booths.’
    • ‘It sticks doggedly to its line through numerous fast circuits round large roundabouts.’
    • ‘Since 1995, the flight circuits have been directed to the north, north-west and south of the base.’
    • ‘Blood flows in a circuit between the heart and the lungs.’
    • ‘On your fourth flight you fly solo and by then you're pretty confident in flying circuits.’
    • ‘At present, long haul international freighters are losing capacity because of the need to carry extra fuel to fly circuits around Perth in case the weather is poor.’
    • ‘The helicopter flew a final circuit and then the show was over.’
    • ‘The circuit was almost finished, and I was second.’
    • ‘I finished my circuit of the town, now also wanting to buy an antiquarian book.’
    • ‘They'd make a few circuits of the church so we all got a good look.’
    • ‘The race finishes with a circuit race in the centre of Dublin next Sunday.’
    • ‘The direction of travel around a circuit is decided by the instructor.’
    lap, turn, tour, round, circle, orbit, revolution, loop
    View synonyms
    1. 1.1British A track used for motor racing, horse racing, or athletics.
      ‘Hockenheim was a fast circuit but was regarded as one of the safest’
      • ‘With me in the passenger seat, Mark took me around four laps of the circuit.’
      • ‘Talladega is still the fastest track on the circuit.’
      • ‘The crowd then briskly moves to the trackside to watch the start and follow the colours of their jockey around the circuit to the finish line.’
      • ‘Road racing was popular on the continent but in Britain it was banned, leading to the development of closed circuits on private land.’
      • ‘He had never raced at the circuit before and his performance was excellent.’
      • ‘Bardon flew around the circuit in an impressive time of 29.84.’
      • ‘I like the Hungaroring, as it's quite a different track from the rest of the Formula One circuits.’
      • ‘Having raced bikes for the past 22 years, this vastly experienced rider made short work of the circuit and fellow riders.’
      • ‘After the first two days of testing, the official drivers swapped circuits.’
      • ‘The winner and their guest will be flown to the circuit by helicopter, where they will be able to watch the race from the best seats in the house.’
      • ‘Hislop couldn't afford to take his family to the tour's race circuits with him to cultivate their interest.’
      • ‘The runners had a six-kilometre circuit, within which Mosley finished in 20 minutes, 27 seconds.’
      • ‘It is also a circuit designed for Formula One cars as it is very smooth.’
      • ‘On the circuit, 600 meters from the finish line, there was a cobblestone section that we passed over every loop we made.’
      • ‘My goal here is to learn the circuit as fast as I can and obviously try to finish the race.’
      • ‘Imola is a nice track and a special circuit to open this part of the calendar.’
      • ‘Powering his way around the circuit he finished with three and a half lengths to spare.’
      • ‘The track actually consists of 5 separate circuits, including a 2.5km oval and a 1.2km drag strip.’
      • ‘There used to be a kart circuit opposite the market and that was the only place I raced for the first three years.’
      • ‘I am very pleased to have crossed the finish line on my home circuit in front of all the celebrating mechanics.’
  • 2An established itinerary of events or venues used for a particular activity, typically involving sport or public performance.

    ‘the alternative cabaret circuit’
    • ‘He studied literature and drama before working the cabaret circuit.’
    • ‘Ever since Tiger Woods entered the golf circuit, the sport hasn't been the same.’
    • ‘He said: ‘We've spent years getting the circuit ready for this event, proving we could run it’.’
    • ‘A growing theatre company is developing its circuit of rural venues by bringing a piece of contemporary dynamite to local stages.’
    • ‘From Sundance to Venice, each film has trodden the path of the festival circuit.’
    • ‘Since then, she has toured the European circuit.’
    • ‘Her brief career has been dotted with some creditable performances in the domestic circuit.’
    • ‘The youngster has become firmly established on the showbiz circuit in the past year.’
    • ‘The comedian has been a regular performer at major venues on the national circuit.’
    • ‘Cliff diving is an international sport with a world circuit contested by competitors from as far afield as Iceland and Brazil.’
    • ‘The race accompanies the Berlin Marathon, a major event on the running circuit.’
    • ‘The films will be introduced by the acclaimed Italian director, whose movies have done the rounds in international film circuits.’
    • ‘No strangers to the tour circuit, these boys have been doing the rounds for several years.’
    • ‘She secured the coveted title of Sports Personality of the Year based on her outstanding performances on the international circuit last year.’
    • ‘In addition to her fairground business, she sells smuggled liquor to the inns and public houses on her circuit.’
    • ‘The Rotherham-born actress started work on the cabaret circuit as a singer touring the north of England.’
    • ‘There are actual tour circuits where, twice a month, people will host a show in their homes.’
    • ‘It was one of the biggest shows to tour the country music circuit; the line up was impressive.’
    • ‘As for the live circuit, nothing beats getting yourself out to a comedy club and checking out new talent first hand.’
    • ‘He wouldn't want his name to be slandered on the party circuit for being a closed-minded homophobe.’
    1. 2.1A series of athletic exercises performed consecutively in one training session.
      [as modifier] ‘circuit training’
      • ‘The program involved eight exercises, performed in a circuit manner with a short rest between each station.’
      • ‘To complete the first cycle in the circuit, after you have finished your barbell rows, immediately begin your bent knee sit-ups; perform 30 reps.’
      • ‘Your circuit training could include kickboxing and weight training techniques.’
      • ‘For variety, moving quickly through a circuit of several weightlifting exercises also can do the trick.’
      • ‘You team up with a partner and after the warm-up, you do two circuits of 15 different exercises.’
      • ‘Perform the following four exercises as a circuit for each arm, doing all moves for one arm before switching.’
      • ‘Training consisted of daily sessions of rigorous circuits and sparring to fine-tune skills and fitness for the approaching battle.’
      • ‘Complete one or two circuits two or three days a week.’
      • ‘If your hotel has a fitness center, this is the day to add a light circuit of resistance training to work all your muscles.’
      • ‘A range of programmes such as aerobics, dance classes and circuit training will be offered to cater for all age groups and various levels of fitness.’
      • ‘Abdominal muscle tone is important for stability, so a circuit along the following lines should help his performance and reduce the risk of injury.’
      • ‘For maximum definition and toning of your entire body, perform 10 cardio/strength circuits.’
      • ‘Included in the hour long session is a 30-minute exercise circuit, which could prove the ideal way to shed those pounds for Christmas.’
      • ‘Do this workout as a circuit twice a week in conjunction with your regular training.’
      • ‘To perform this workout as a circuit, move from exercise to exercise without rest until you complete one set of each.’
      • ‘This workout uses a circuit format, which means you don't rest between exercises.’
      • ‘Nearly every day the swimmers complete a circuit of hand weights and stretch cords.’
      • ‘This will include professional tennis coaching, co-ordination circuits and fun team sports and competitions.’
      • ‘There will also be a five-week circuit training course beginning on January 12.’
      • ‘Performing a circuit workout once or twice a week will at least keep you in the habit of training.’
    2. 2.2A regular journey made by a judge around a particular district to hear cases in court.
      [as modifier] ‘a circuit judge’
      • ‘To see junior barristers in action, visits to district or circuit courts are a good idea.’
      • ‘Outside the capital, most divorce cases are heard in circuit courts that do not sit year round.’
      • ‘When the judge refused, she appealed her decision to a circuit court.’
      • ‘He returned to the legal profession, becoming a circuit court judge in Gadsden.’
      • ‘The Assize courts were presided over by High Court judges out on circuit.’
      • ‘The junior minister urged district and circuit court judges to start using the new law immediately.’
      • ‘Judicial councils are composed of circuit judges, and they proceed under the direction of the senior circuit judge.’
      • ‘The circuit judges' ruling left things as they are for the moment.’
      • ‘At 30, Joe McCarthy was the youngest man ever elected a circuit judge in Wisconsin.’
      • ‘The presiding circuit judge might not have known all the laws relevant to the case.’
      • ‘The circuit court judge who heard the case at trial directed the jury to find for the plaintiff.’
      • ‘It is my hope that all appeals will be listed for hearing by circuit judges.’
      • ‘It was the kind of decision that the liberal judges on the circuit normally ask the court to rehear.’
      • ‘As one of two family law judges on the circuit, she was one of the first to deal with divorce cases.’
      • ‘The circuit court judge decided the litigants didn't have a right to sue.’
      • ‘After the report, a tribunal of Maryland circuit court judges reduced the homicide charge to manslaughter.’
      • ‘A neighbours' squabble over late-night noise ended in court before a circuit judge, 12 jurors and two barristers.’
      • ‘Members attended bi-weekly court sessions, wherein their progress was individually appraised by a resident circuit judge.’
      • ‘He cited a case where a circuit court judge made a ruling on a point of law which disadvantaged the prosecution.’
      • ‘The responsibility is greatest when the circuit judge is asked to issue a search warrant.’
    3. 2.3A district administered or formerly administered by travelling judges.
      ‘the six circuits of England and Wales replaced the old system of assizes’
      • ‘Six tourism circuits will be identified for development to international standards during 2002-03.’
      • ‘The country was divided by Henry II into six judicial circuits for the purpose of bringing royal justice to all regions.’
      • ‘The commissioners were major lay and ecclesiastical lords with only small landholdings in the shires of the circuit.’
    4. 2.4A group of local Methodist Churches forming an administrative unit.
      ‘the success of any chapel or Methodist circuit depended on the minister’
      • ‘In 1863 he took charge of the Ramer circuit in south Montgomery County, Alabama.’
      • ‘There are currently around 11 Methodist churches in the Keighley circuit.’
      • ‘There are other churches on the Methodist circuit in Accrington so there might be other people in other churches prepared to help.’
      • ‘The cathedral is set to be packed for the service, with all tickets already distributed through deaneries and Methodist circuits.’
    5. 2.5A chain of theatres or cinemas under a single management.
      ‘the company also bought cinema circuits in Canada, New Zealand, and Australia’
      • ‘In more than 20 years of studying the Odeon cinema circuit, he had seen this kind of scenario enacted many times.’
  • 3A complete and closed path around which a circulating electric current can flow.

    ‘the maximum number of light fittings on a circuit is twelve’
    • ‘When you pick up a handset it generates a loop current in the circuit.’
    • ‘With the exception of sound, electricity is the only other kinesis that requires a circuit or path to get to a destination.’
    • ‘Lithography tools are used to draw the lines of a circuit on to a semiconductor wafer.’
    • ‘The very small particles stream through wires and circuits creating currents of electricity.’
    • ‘Increasingly, aluminium circuits were restricting the flow of electrical current, creating signal delay between the millions of transistors inside a chip.’
    • ‘Follow the path of the circuits back a bit to see where they connect up to solder points.’
    • ‘In every circuit, voltage, current and resistance are exactly proportional, mathematically speaking.’
    • ‘When air is brought into contact with the second electrode, current flows through any circuit linking the two electrodes.’
    • ‘If a fuse is in the supply circuit, it will do its job and blow out, opening the circuit and stopping the current flow.’
    • ‘When the charges connect, effectively closing a circuit, electric energy flows along that jagged path.’
    • ‘He had learned that an inductance coil was a closed circuit with no current of its own.’
    • ‘The battery forces electrons to flow through the circuit from one terminal to the other.’
    • ‘When there is a path that goes from the negative to the positive terminal, you have a circuit, and electrons can flow through the wire.’
    • ‘In the ordinary telephone system, each time we make a call, we have to establish a circuit between our phone and the phone of the person we would like to talk with.’
    1. 3.1A system of electrical conductors and components forming an electrical circuit.
      ‘control circuits’
      • ‘Thanks to wireless integration, roughly 20 more lighting circuits became programmable for use in lighting scenes and pathways.’
      • ‘The local phone company lost one of its major switching centres, with some 200,000 lines and three million circuits.’
      • ‘In an electrical circuit, the number of electrons that are moving is called the amperage or the current, and it is measured in amps.’
      • ‘They claim that the company owes other telecoms operators about £1.25 million in fines for the late delivery of telecoms circuits and leased lines.’
      • ‘In the accident identification system, there are circuits to determine when there is an abnormal movement that indicates an accident.’
      • ‘Engineers added the new circuits for the electric air conditioning.’
      • ‘The components of the circuit are checked against specific parameters.’
      • ‘Basically, LEDs are just tiny light bulbs that fit easily into an electrical circuit.’
      • ‘Mauchly's interests were in electrical engineering and he looked for ways to develop electrical circuits for computation.’
      • ‘Applied as very thin films, they create a fabric of nanotube ropes that can conduct electricity in circuits.’
      • ‘A control circuit is coupled to the sensors and receives the signals.’
      • ‘For electric circuits on a nanoscale, further components are needed in addition to tiny wires.’
      • ‘My grandfather had died in 1913 installing electric circuits when he, my father, was a baby.’
      • ‘She cannot list the major components in an electrical circuit even though they were described in the chapter.’
      • ‘Power electronics technology uses electronic circuits to convert and control electric energy with optimum efficiency.’
      • ‘A battery is only one source for an electric circuit.’
      • ‘The heating element includes heating segments connected together in an electric circuit.’
      • ‘The chips would be made from silicon or plastic, using microscopic machinery which can fit electric circuits on to objects too small to be seen by the naked eye.’
      • ‘The electron from the hydrogen goes through the electrical circuit to the cathode to make water.’
      • ‘The control circuits take mere nanoseconds to decide how the laser light must be modulated.’


  • Move all the way around (a place or thing)

    ‘the trains will follow the Northern line, circuiting the capital’
    • ‘An American couple, circuiting the perimeter, had just visited HMS Britannia.’
    • ‘This nine-mile walk circuited through the local forestry.’
    • ‘Pull up a pillion seat and spend the next hour breezily circuiting the Rock while your driver tells its tale.’
    • ‘There is a railway with model trains circuiting the room.’
    • ‘Very deliberately, like discoursing philosophers, we circuited the diamond.’
    • ‘You will accompany me as we backtrack through art's history, before circuiting the globe in pursuit of art's diverse manifestations.’
    • ‘Drake's expedition was the second to circuit the globe and also led to his claiming California for Elizabeth.’
    • ‘Most of those are in the main belt, where some millions of asteroids larger than 1 km in size are thought to circuit the Sun.’
    • ‘After eight of our orbits Venus has circuited the Sun 13 times, and returns to more or less the same position relative to us.’


Late Middle English: via Old French from Latin circuitus, from circuire, variant of circumire go round, from circum around + ire go.