/ Dictionary / Index R radiodiagnosis: Meaning and Definition of Find definitions for: ra•di•o•di•ag•no•sis Pronunciation: (rā"dē-ō-dī"ug-nō'sis), [key] — pl. -ses diagnosis by means of radiography or radioscopy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. radio compass radio direction finder Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language