smoke detector

noun

: an alarm that activates automatically when it detects smoke

called also smoke alarm

Examples of smoke detector in a Sentence

Recent Examples on the Web

Carbon Monoxide and Smoke Detectors Nearly every homeowner recognizes the incessant chirp that indicates a dying battery in a carbon monoxide or smoke detector, but few know that the units themselves should be replaced after 7 to 10 years. — Kamron Sanders, Better Homes & Gardens, 27 Sep. 2026

Calls often include car accidents, search and rescue, downed power lines from storms, hazmat issues, medical incidents, animals caught in trees and beeping smoke detectors. — Julia Levine, Hartford Courant, 7 Sep. 2026

In an apartment building, the landlord is responsible for installing and maintaining smoke detectors in common areas, while tenants are responsible for maintaining the alarms in their own unit. — Kelli Arseneau, jsonline.com, 24 Aug. 2026

Besides setting off your smoke detector, the layers of grease can be a fire hazard if they’re neglected. — Karen Brewer Grossman, Southern Living, 21 Aug. 2026

Word History

First Known Use

circa 1927, in the meaning defined above

Rhymes for smoke detector

• photodetector
• bisector
• collector
• connector
• corrector
• defector
• deflector
• director
• dissector
• effector
• ejector
• elector

Kids Definition

smoke detector

noun

: an alarm that activates automatically when it detects smoke

called also smoke alarm