/ Dictionary / Index E electrocardiograph: Meaning and Definition of Find definitions for: e•lec•tro•car•di•o•graph Pronunciation: (i-lek"trō-kär'dē-u-graf", -gräf"), [key] — n. Med. a galvanometric device that detects and records the minute differences in electric potential caused by heart action and occurring between different parts of the body: used in the diagnosis of heart disease. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: electrocardiograph (Thesaurus) electrocardiogram electrocautery Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language