Meaning of closed-circuit television

closed'-circuit tel'evision

Pronunciation: [key]
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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