electroretinograph: Meaning and Definition of

e•lec•tro•ret•i•no•graph

Pronunciation: (i-lek"trō-ret'n-u-graf", -gräf"), [key]
— n. Ophthalm.
  1. 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.