The Collaborative International Dictionary
Bank-note detector
Detector \De*tect"or\, n. [L., a revealer.] One who, or that which, detects; a detecter. --Shak. A deathbed's detector of the heart. --Young. 2. Specifically:
An indicator showing the depth of the water in a boiler.
(Elec.) A galvanometer, usually portable, for indicating the direction of a current.
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(Elec.) Any of various devices for detecting the presence of electric waves.
Bank-note detector, a publication containing a description of genuine and counterfeit bank notes, designed to enable persons to discriminate between them.
Detector lock. See under Lock.