/ Dictionary / Index S self-diagnosis: Meaning and Definition of Find definitions for: self-di•ag•no•sis Pronunciation: (self'dī"ug-nō'sis), [key] — pl. -ses the diagnosis of one's own malady or illness. 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. self-devotion self-discipline Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language