smoke detector


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

Nearby words

  1. smoke,
  2. smoke alarm,
  3. smoke and mirrors,
  4. smoke bomb,
  5. smoke chamber,
  6. smoke dome,
  7. smoke out,
  8. smoke pot,
  9. smoke screen,
  10. smoke shelf

Origin of smoke detector

First recorded in 1925–30

Also called smoke alarm. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019