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Alarm system   /əlˈɑrm sˈɪstəm/   Listen
Alarm system

noun
1.
A device that signals the occurrence of some undesirable event.  Synonyms: alarm, warning device.






WordNet 3.0 © 2010 Princeton University








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"Alarm system" Quotes from Famous Books



... tariff—a fixed rental and a toll; and mentioned the practice, now in use on long-distance lines, of a time charge. As a matter of fact, this "centralizing" was attempted in May, 1877, in Boston, with the circuits of the Holmes burglar-alarm system, four banking-houses being thus interconnected; while in January of 1878 the Bell telephone central-office system at New Haven, Connecticut, was opened for business, "the first fully equipped commercial telephone exchange ever established for ...
— Edison, His Life and Inventions • Frank Lewis Dyer and Thomas Commerford Martin



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