closed-circuit television

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noun

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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His boss, whom he admires, is waiting to meet with him about the big project.

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Origin of closed-circuit television

First recorded in 1945–50

Words nearby closed-circuit television

closed book, closed caption, closed-captioned, closed chain, closed circuit, closed-circuit television, closed community, closed cornice, closed corporation, closed couplet, closed cycle

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use closed-circuit television in a sentence

It triangulates the sound and, similar to a red-light camera, uses closed-circuit television to automatically take a picture of the license and fine the driver.
Paris will try using sound sensors to fine vehicles causing noise pollution|Camille Squires|October 5, 2021|Quartz
Metro uses closed-circuit television for several safety purposes, such as monitoring platform conditions.
Metro board members open to fare reduction, service changes to lure back riders|Justin George|June 2, 2021|Washington Post
The Washington Metrorail Safety Commission had asked Metro to give safety inspectors access to closed-circuit television or surveillance video footage for “at least several months,” but Metro has declined, commission spokesman Max Smith said.
Metro board members open to fare reduction, service changes to lure back riders|Justin George|June 2, 2021|Washington Post
There were no closed-circuit television cameras operating in the area near the blast.
Terror Strikes India|Sudip Mazumdar|September 7, 2011|DAILY BEAST

I'll probably stick to electric-eye doors, burglar alarms, closed-circuit television systems and things like that.
Creatures of the Abyss|Murray Leinster

British Dictionary definitions for closed-circuit television

closed-circuit television

noun

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012