Meaning ofcircuit breakerin English

Noun

1. an electrical switch for circuit control
2. a device for automatic overcurrent protection; fault situations
3. quarantine measures for pandemic prevention
   The government implemented circuit breaker measures to slow the spread of the virus.
4. a design pattern for failure detection and prevention
   The developer used a circuit breaker pattern to prevent cascading failures in the system.
5. a regulatory tool to halt trading during market crashes
   The exchange activated the circuit breaker to prevent a market free fall.