Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “circuit breaker”

See all translations

circuit breaker

noun [C]
 
 
a piece of equipment that stops the flow of an electric current, used to prevent damage to the wires and equipment that are connected to it: If your internet access is out, it could be that a circuit breaker was tripped during a storm.
STOCK MARKET a rule that temporarily stops trade on a stock market or closes it when prices go down to a particular level too quickly: The New York Stock Exchange instituted circuit breakers to reduce volatility and promote investor confidence. There are three circuit-breaker thresholds—10%, 20%, and 30%— calculated at the beginning of each quarter.
Translations of “circuit breaker”
in Chinese (Traditional) (電流)斷路器…
in Chinese (Simplified) (电流)断路器…
(Definition of circuit breaker from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of circuit breaker?
Add Cambridge dictionaries to your browser to your website

Definitions of “circuit breaker” in other dictionaries

Word of the Day

escapism

a way of avoiding an unpleasant or boring life, especially by thinking, reading, etc. about more exciting but impossible activities

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

showrooming noun

February 23, 2015
the activity of examining a product in a physical store and then making the purchase with an online retailer Amazon’s new smartphone is specifically designed to make showrooming fast and easy.

Read More