cir ‧ cuit W3 /ˈsɜːkət, ˈsɜːkɪt $ ˈsɜːr-/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: Old French ; Origin: circuite , from Latin circuitus , past participle of circumire , circuire 'to go around' , from circum ( CIRCUM- ) + ire 'to go' ]
1 . a path that forms a circle around an area, or a journey along this path:
We did a circuit of the old city.
2 . British English a track that cars, ↑ motorbike s etc race around
3 . the tennis/lecture/cabaret etc circuit all the places that are usually visited by someone who plays tennis etc:
a well-known entertainer on the club circuit
4 . the complete circle that an electric current travels:
an electrical circuit
5 . a regular trip around an area made by a judge or a religious leader, so that a court of law or church can meet in several different places:
a circuit judge
a circuit preacher
6 . do circuits British English informal to do ↑ circuit training
⇨ ↑ closed circuit television , ↑ printed circuit , ↑ short circuit