racing circuit(n = noun.artifact) circuit - a racetrack for automobile races;
is a kind of racecourse, racetrack, raceway, track

and circuit, auto racing, boat racing, borscht circuit, borsht circuit, bridge circuit, camel racing, car racing, circuit, circuit board, circuit breaker, circuit card, circuit court of appeals, closed circuit, computer circuit, control circuit, dog racing, electric circuit, electrical circuit, feedback circuit, greyhound racing, harness racing, horse racing, hydroplane racing, integrated circuit, light circuit, lighting circuit, nand circuit, negative feedback circuit, open circuit, or circuit, parallel circuit, phantom circuit, printed circuit, pulse timing circuit, racing, racing boat, racing car, racing gig, racing shell, racing skate, racing skiff, racing start, racing yacht, resonant circuit, series circuit, short circuit, shunt circuit, squelch circuit, tank circuit, telephone circuit, thoroughbred racing, x-or circuit, xor circuit