Pronunciation: (self'dī"ug-nō'sis), [key]
—pl. -sesPronunciation: (-sēz). [key]
1. the diagnosis of one's own malady or illness.
2. the capability of an electronic system to detect and analyze an error or malfunction within itself.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.