closed circuit
2
4.3
- noun
- /kloʊzd ˈsɜrkɪt/
- Specialized
:
circuito cerrado
- During the meeting, all participants could view the presentation on the closed circuit display.
- closed-circuit television
Examples
-
The security team monitors the building using a closed circuit camera system.
-
Rich's Department Store set up a closed-circuit television for its customers to catch a glimpse of the "typical examples" of the broadcasts to appear in the coming months on WSB.
Academic text (2007) -
No, it's a closed circuit TV system.
-
We're also sending this closed circuit to one of our conference rooms; there are a lot of people interested in our results today.
Fiction book (1999) -
The Dean's gonna videotape an announcement to play on the school's closed circuit system.
-
At the nurses' station, a staff member observes the child on a closed-circuit monitor.
Fiction book (2000) -
The teacher announced the schedule change through the school's closed circuit broadcast system.
Synonyms
87
4.9
A closed path where electric current or signals flow
3
3.3
A closed path of wires and parts that lets power flow
1
3.5
A closed path of wires and parts that lets electricity flow
Antonyms
Surface Forms
Morphology
The meaning is directly compositional: a circuit that is 'closed' (i.e., the path is complete) so current can flow, which a learner who knows 'closed' and 'circuit' can infer. This adjective+noun pattern is common and has clear cross-linguistic equivalents (e.g., open/closed circuit), making the sense predictable for a B1 learner.
Etymology
The term closed circuit paints the image of a loop: a circuit is a path and closed means the path is connected so electricity or a signal can move around it. That's why closed circuit means 'a path where electricity or a signal can flow'.