detection

noun3

1. •
   The act or process of detecting, uncovering, or finding out, the discovery of something new, hidden, or disguised.

   • “Why should Eldridge commit murder?[…]There was only one possible motive—namely, he wished to avoid detection as James Selby of Anaconda Ltd.[…]” — 1931
2. •
   The act or process of finding or detecting an electrical signal in a carrier wave.
3. •
   (no longer used) Synonym of accusation, the exposure of concealed information about a crime or heresy.