circuit breaker 
noun
An automatic device for stopping the flow of current in an electric circuit as a safety measure.This circuit-breaker is suitable for plants in which smooth DC fault currents can occur....
- This included adjusting the voltages in the electrical system to allow a circuit-breaker to be closed.
- Eight new styles are being designed especially for the development, and all will include circuit-breakers.
- -arious
- arise
- arisings
- Aristarchus
- Aristide, Jean-Bertrand
- Aristides
- Aristippus
- aristo
- aristocracy
- aristocrat
- aristocratic
- aristocratically
- Aristophanes
- Aristotelian
- Aristotelian logic
- aristotle
- Aristotle's lantern
- Arita
- arith.
- arith
- arithmetic
- arithmetical
- arithmetically
- arithmetical ratio
- arithmetician