smoke detector

noun

1. an electronic fire alarm that is activated by the presence of smoke.

Word History and Origins

Origin of smoke detector¹

First recorded in 1925–30

Example Sentences

That means it will sell Pixel phones, earbuds, Pixelbook laptops, Chromecasts, Google TVs, Stadia controllers, and Nest-branded speakers, smart displays, thermostats, smoke detectors, cameras, Wi-Fi routers, and doorbells.

From Ars Technica

Forget Daylight Saving Time, I get my reminder to change the batteries in my smoke detectors every time the Left-wing Voice of San Diego puts out another one of their error-filled, false-narrative hit pieces against me.

From Voice of San Diego

The measure would have required smoke detectors and carbon monoxide alarms in newly constructed homes and older homes for sale if the residences had fuel-burning appliances.

From ProPublica

You still need a carbon monoxide alarm if you have a smoke detector, but combination units are available.

From ProPublica

The smoke detectors, he discovers, had been maintained by AmeriCorps volunteers, who now install faucet filters instead.

From Washington Post

Coming next: a smoke detector that could be a real disruptor.

From The Daily Beast

Investigators have said that the house was under renovation and a new smoke detector system had not been activated.

From The Daily Beast