/ Dictionary / Index D DX: Meaning and Definition of Find definitions for: DX Pronunciation: [key] — Radio. Radio. distance (used esp. to designate difficult shortwave reception). Dx Pronunciation: [key] diagnosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dwy Dy Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language