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[dih-tek-shuh n] /dɪˈtɛk ʃən/
the act of detecting.
the fact of being detected.
discovery, as of error or crime:
chance detection of smuggling.
  1. rectification of alternating signal currents in a radio receiver.
  2. Also called demodulation. the conversion of an alternating, modulated carrier wave or current into a direct, pulsating current equivalent to the transmitted information-bearing signal.
Origin of detection
late Middle English
1425-75; late Middle English < Late Latin dētēctiōn- (stem of dētēctiō), equivalent to Latin dētēct(us) (see detect) + -iōn- -ion
Related forms
predetection, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for detection
Contemporary Examples
Historical Examples
  • I was afraid to set the weights down for fear of detection and punishment.

    Biography of a Slave Charles Thompson
  • But this was only his second detection, and three of his four days of probation were past.

  • The risk of detection, so that they made little noise, was negligible.

    Captain Blood Rafael Sabatini
  • That was clearly impracticable and fraught with too much risk of detection.

    The Sea-Hawk Raphael Sabatini
  • The word refers to the detection by the mother of the movements of the child.

British Dictionary definitions for detection


the act of discovering or the fact of being discovered: detection of crime
the act or process of extracting information, esp at audio or video frequencies, from an electromagnetic wave See also demodulation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for detection

early 15c., "exposure, accusation," from Latin detectionem (nominative detectio) "an uncovering," noun of action from past participle stem of detegere (see detect).

Online Etymology Dictionary, © 2010 Douglas Harper
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