/ Dictionary / Index E ECG: Meaning and Definition of Find definitions for: ECG Pronunciation: [key] electrocardiogram. electrocardiograph. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ecg (Thesaurus) ECF échappé Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language