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smoke alarm

 - 2 dictionary results

smoke detector

–noun
an electronic fire alarm that is activated by the presence of smoke.
Also called smoke alarm.


Origin:
1925–30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To smoke alarm
smoke detector  
n.  An alarm device that automatically detects the presence of smoke. Also called smoke alarm.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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