/ Dictionary / Index D diathermy: Meaning and Definition of Find definitions for: di•a•ther•my Pronunciation: (dī'u-thûr"mē), [key] — n. Med. the production of heat in body tissues by electric currents, for therapeutic purposes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diathermy (Thesaurus) diathermic diathesis Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language