Akademik

an alarm that is tripped off by fire or smoke

smoke alarm noun

A device that detects smoke from a fire in a room, building, etc and sounds a warning bell or buzzer

Main Entry: ↑smoke

smoke alarm UK US noun [countable] [singular smoke alarm plural smoke alarms]

a piece of equipment that makes a loud noise when there is smoke in a room, used for warning people that there is a fire in the building

Thesaurus: signals and equipment used for warning people_hyponym

noun, pl ⋯ alarms [count]

: a device that makes a loud and harsh noise when smoke fills a room — called also smoke detector

ˈsmoke alarm 7 [smoke alarm] (also ˈsmoke detector) noun

a device that makes a loud noise if smoke is in the air to warn you of a fire