emergencylight
nounUK /ɪˈmɜːdʒənsi laɪt/
US /ɪˈmɝːdʒənsi laɪt/
A light that turns on by itself when the power goes out.
When the storm cut the electricity, the emergency light above the door glowed brightly.
RELATED WORDS
OTHER MEANINGS
2. A small light kept in a car or building for use during an accident or breakdown.
She grabbed the emergency light from the trunk when the car stalled on the highway.
3. A warning light on a vehicle or machine that signals a problem.
The emergency light on the dashboard flashed red until he pulled over.
4. A lamp powered by a battery that stays on during a fire or evacuation.
The emergency light in the stairwell guided everyone safely outside.