A smoke detector is the little ceiling disc that screams when something is burning. Test the smoke detector.
Most of them go off at toast and none of them go off when the battery is out. A smoke detector roughly halves the chance of dying in a house fire.
1phrasesmoke detectorThe little ceiling disc that screams when something is burning.
“The smoke detector went off for four minutes of toast.”
smoke detector is a device.
Also accepted in games: smoke alarm
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