De·tect·or n. One who, or that which, detects; a detecter.
A deathbed's detector of the heart. --Young.
2. Specifically: (a) An indicator showing the depth of the water in a boiler. (b) Elec. A galvanometer, usually portable, for indicating the direction of a current. (c) 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.
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