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detection

[dih-tek-shuh n] /dɪˈtɛk ʃən/
noun
1.
the act of detecting.
2.
the fact of being detected.
3.
discovery, as of error or crime:
chance detection of smuggling.
4.
Telecommunications.
  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
late Middle English
1425-1475
1425-75; late Middle English < Late Latin dētēctiōn- (stem of dētēctiō), equivalent to Latin dētēct(us) (see detect) + -iōn- -ion
Related forms
predetection, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for predetection

detection

/dɪˈtɛkʃən/
noun
1.
the act of discovering or the fact of being discovered: detection of crime
2.
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 predetection

detection

n.

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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Encyclopedia Article for predetection

detection

in electronics, the process of rectifying a radio wave and recovering any information superimposed on it; it is essentially the reverse of modulation (q.v.).

Learn more about detection with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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