closed circuit

noun

, Electricity.

1. a circuit without interruption, providing a continuous path through which a current can flow.

closed circuit

noun

1. a complete electrical circuit through which current can flow when a voltage is applied Compare open circuit

closed circuit

1. An electric circuit through which current can flow in an uninterrupted path.
2. Compare open circuit
3. A television system in which the signal is usually sent by cable to a limited number of receivers.

Other Words From

• closed-circuit adjective

Word History and Origins

Origin of closed circuit¹

First recorded in 1820–30

Example Sentences

That is, the electricity that drives electromagnetism has no resistance, and constantly runs in a closed circuit without the supply of electricity.

From Science Daily

This year’s proposal is lumped into a budget item that would also fund closed circuit television surveillance and increase the city’s number of automated license plate readers.

From Seattle Times

Chernichuk said that water cooling the facility's spent nuclear fuel storage pools was on a closed circuit and had no direct contact with water coming from the Kakhovka Reservoir.

From Reuters

At 4.17am on Feb. 6, the snow-covered ground around the Trend Garden began shaking violently, according to footage captured by closed circuit television.

From Reuters

Investigators suspect the pair used large amounts of cash to live off the grid, traveling around the country by taxi, covering their faces when near closed circuit cameras and moving frequently, often after dark.

From Seattle Times