detection
/dɪˈtekʃən/noun
mass noun
1- the action or process of identifying the presence of something concealed（对隐匿之物的）发现, 察觉：
the early detection of fetal abnormalities.
对胎儿畸形的早期发现。
1.1
- the work of a detective in investigating a crime（侦探对罪行的）侦查：
as modifier the detection rate for murder is over 90 per cent.谋杀案的侦破率超过了90％.
词源
late 15th cent. （in the sense 'revelation of what is concealed'）： from late Latin detectio（n-）， from Latin detegere 'uncover' （see DETECT）.