Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “smoke detector”

See all translations

smoke detector

noun [C] uk   us  
a device that makes a loud noise when there is smoke present to tell people that there is a fire
Translations of “smoke detector”
in Chinese (Traditional) 煙霧報警器, 煙霧探測器…
in Chinese (Simplified) 烟雾报警器, 烟雾探测器…
(Definition of smoke detector from the Cambridge Advanced Learners Dictionary & Thesaurus © 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

Word of the Day

baby

a very young child, especially one that has not yet begun to walk or talk

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

stackin’ p

March 30, 2015
idiom slang earning a lot of money ‘That’s a very generous present.”Yeah, well, she’s stackin’ p, innit?’

Read More