/ Dictionary / Index E echoencephalogram: Meaning and Definition of Find definitions for: ech•o•en•ceph•a•lo•gram Pronunciation: (ek"ō-en-sef'u-lu-gram"), [key] — n. Med. a graphic record produced by an echoencephalograph. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: echoencephalogram (Thesaurus) echo chamber echoencephalograph Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language