What is the meaning of Circuit_breaker?

An electrical switch capable of opening and closing an electrical circuit in all operating conditions, including fault situations.

More specifically, a circuit breaker that automatically breaks overcurrent conditions; a type of overcurrent protective device.

Synonym of trading curb

Quarantine measures intended to prevent spread of pandemics, especially COVID-19.

A design pattern used to detect failures and prevent them from constantly recurring.

Source: wiktionary.org