Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “smoke detector”

smoke detector

noun [C]  /ˈsmoʊk dɪˌtek·tər/ us  
a device that makes a loud noise when smoke is present to warn of a possible fire
(Definition of smoke detector from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of smoke detector?
Add Cambridge dictionaries to your browser to your website

Definitions of “smoke detector” in other dictionaries

Translations of “smoke detector”

Word of the Day

microbrewery

a small company that makes beer, usually using traditional methods, and often has a restaurant where its beer is served

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More