circuit-breaker

/S ER1 K AH0 T B R EY1 K ER0/
noun
  1. 1

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

  2. 2

    Quarantine measures intended to prevent spread of pandemics, such as the coronavirus.

noun
  1. 1

    A financial regulatory instrument to prevent stock market crashes from occurring, by temporarily shutting down trading to allow accurate information to flow between parties.

Source: https://en.wiktionary.org/wiki/circuit%20breaker, https://en.wiktionary.org/wiki/circuit-breaker, https://en.wiktionary.org/wiki/trading%20curb