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circuit breaker

Electricity. Also called breaker. a device for interrupting an electric circuit to prevent excessive current, as that caused by a short circuit, from damaging the apparatus in the circuit or from causing a fire.
any property-tax relief measure that reduces or limits property taxes for certain eligible taxpayers, as those with low income or the elderly.
Origin of circuit breaker
1870-75, Americanism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for circuit breaker
  • By the time a fuse or circuit breaker opens a circuit to defuse these conditions, a fire may already have begun.
  • Make sure the wiring and devices used in the circuit are connected to a circuit breaker or fuse of the proper size.
  • Fifty-one minutes later, a circuit breaker on the second transformer burst into flames.
  • You've got to put a circuit breaker on that thing, or something.
  • It's called a circuit breaker, and it is supposed to calm the market.
  • Turn off the circuit breaker on the shore hookup box and connect the electrical power cord to the box.
  • The trouble may be a short in the plug, a tripped circuit breaker, or a bad surge-protector outlet.
  • Yes, it should be eliminated or a minimum restricted to those seniors eligible for the circuit breaker program.
  • People eligible for the circuit breaker program should not be gambling.
  • Shock-out occurs as a result of shock caused by the circuit breaker cycling from the open position to the closed position.
British Dictionary definitions for circuit breaker

circuit breaker

a device that under abnormal conditions, such as a short circuit, interrupts the flow of current in an electrical circuit Sometimes shortened to breaker Compare fuse2 (sense 6)
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
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circuit breaker in Science
circuit breaker  
A switch that automatically interrupts the flow of electric current if the current exceeds a preset limit, measured in amperes. Circuit breakers are used most often as a safety precaution where excessive current through a circuit could be hazardous. Unlike fuses, they can usually be reset and reused.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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