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detectorism
detector
An indicator showing the depth of the water in a boiler. / A galvanometer, usually portable, for indicating the direction of a current.
detectors
lie detector
(informal) A polygraph, a device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being asked to a subject, in an attempt to detect lies.
lie detectors
plural of lie detector
junction detectors
currency detector
A device that determines whether notes or coins are genuine or counterfeit.
motion detector
A device used in security systems that can alert the user of the presence of a moving object.
lightning detector
A device that provides an alarm to inform its user(s) that lightning has occurred nearby. Specific devices are available for a variety of applications.