closed-circuit television en · NOUN
Etymology
So called because of the contrast between broadcast use (the typical use of television, especially when this name was coined) and private use closed off to others.
Meanings
-
(countable, uncountable) A system of television cameras used for surveillance, connected to a control room (originally by cables and today either by cables or by secure wireless).
Holborn Underground Station, on London Transport's Piccadilly and Central Lines, has been equipped with closed-circuit television to help control passenger movement.
1963 January, “News and comment”, in Modern Railways, page 14:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| closed-circuit televisions | Number=Plur | lexicographic |
Relateds
Synonyms
Translations (10)
pl monitoring (system of television) · pl telewizja przemysłowa (system of television) · pl telewizja obserwacyjna (system of television) · da tv-overvågning (system of television) · da videoovervågning (system of television) · fi kameravalvonta (system of television) · ca circuit tancat de televisió (system of television) · cy teledu cylch cyfyng (system of television) · cmn 閉路電視 /闭路电视 (system of television) · pl wideonadzór (system of television)