Definition of smoke alarm noun from the Oxford Advanced Learner's Dictionary


smoke alarm

BrE BrE//ˈsməʊk əlɑːm//
; NAmE NAmE//ˈsmoʊk əlɑːrm//
(also smoke detector) House equipment
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a device that makes a loud noise if smoke is in the air to warn you of a fire See related entries: House equipment
See the Oxford Advanced American Dictionary entry: smoke alarm