/ Dictionary / Index E electroretinograph: Meaning and Definition of Find definitions for: e•lec•tro•ret•i•no•graph Pronunciation: (i-lek"trō-ret'n-u-graf", -gräf"), [key] — n. Ophthalm. an instrument that measures the electrical response of the retina to light stimulation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. electroretinogram electroscope 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