predetection

detection

[dih-tek-shuhn]
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.
a.
rectification of alternating signal currents in a radio receiver.
b.
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:
1425–75; late Middle English < Late Latin dētēctiōn- (stem of dētēctiō), equivalent to Latin dētēct(us) (see detect) + -iōn- -ion

predetection, noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
detection (dɪˈtɛkʃən)
 
n
1.  the act of discovering or the fact of being discovered: detection of crime
2.  See also demodulation the act or process of extracting information, esp at audio or video frequencies, from an electromagnetic wave

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

detection
late 15c., from L. detectionem (nom. detectio), pp. of detegere (see detect).
Online Etymology Dictionary, © 2010 Douglas Harper
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