Source : Webster's Revised Unabridged Dictionary (1913)

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.

   {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}.