closed-circuit television

American  

noun

1. a system of televising by cable to designated viewing sets, as within a factory for monitoring production operations, in a theater for viewing a special event taking place elsewhere, or in an office building as an aid to maintaining security.

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closed-circuit television British  

noun

1. a television system in which signals are transmitted from a television camera to the receivers by cables or telephone links forming a closed circuit, as used in security systems, etc

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Etymology

Origin of closed-circuit television

First recorded in 1945–50

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Example Sentences

See Examples For:

closed-circuit television

GS Vice President Ally Kim, who leads 52g, said the team used Graphon to improve analysis of closed-circuit television recordings that monitor construction sites for safety compliance.

From The Wall Street Journal ● May 14, 2026

Mason said authorities were reviewing closed-circuit television video.

From Los Angeles Times ● Sep. 10, 2025

On Feb. 9, the Met said they believed Ezedi had probably “gone into the water” after piecing together closed-circuit television footage of his movements after the attack.

From Seattle Times ● Feb. 23, 2024

The day was disrupted by three separate red-flag stoppages over two sessions, and the first session was wrecked by a technical problem with the track closed-circuit television system, which is part of F1's safety apparatus.

From BBC ● Jun. 16, 2023

There were closed-circuit television cameras everywhere, and Sayle could see every corner of his kingdom without even leaving the room.

From "Stormbreaker" by Anthony Horowitz

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