detector
/dɪˈtɛktə(ɹ)/ noun B2- A device capable of registering a specific substance or physical phenomenon, and that optionally sounds an alarm or triggers a warning. · Smoke detectors are mandatory in public buildings.
- An indicator showing the depth of the water in a boiler.
- A galvanometer, usually portable, for indicating the direction of a current.
- A device measuring radiation or electromagnetic waves.
Plural detectors
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