Detector
/dɪˈtektər/noun
A device or instrument designed to discover and signal the presence of something.
The fire alarm had a smoke detector to alert people in case of a fire.
Often appears as...
- smoke detector
- metal detector
Definition 1 of 3
Pro Tip 1/3Safety Importance
Detectors often relate to safety, warning about dangers like smoke or carbon monoxide.
Every home should have a carbon monoxide detector for safety.
Pro Tip 2/3Specific Usage
Detectors are named for what they detect: smoke detectors for smoke, metal detectors for metal.
The airport security uses a metal detector to check for concealed weapons.
Pro Tip 3/3Detection Signals
Detectors usually signal their findings with lights, sounds, or digital messages.
The smoke detector beeped loudly when it sensed smoke in the room.
Compare with
alarmfinderindicatorlocatormonitorscannersearchsensor
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