Pronunciation: (di-tek'shun), [key]
1. the act of detecting.
2. the fact of being detected.
3. discovery, as of error or crime: chance detection of smuggling.
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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.