/ dɪˈtekʃn; NAmE / noun
[ U ] the process of detecting sth; the fact of being detected :
crime prevention and detection
Last year the detection rate for car theft was just 13%.
Many problems, however, escape detection.
Early detection of cancers is vitally important.
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WORD ORIGIN
late 15th cent. (in the sense revelation of what is concealed ): from late Latin detectio(n-) , from Latin detegere uncover, from de- (expressing reversal) + tegere to cover.