elec·tro·ret·i·no·graph \ə̇¦lektrō¦ret(ə)nəˌgraf, ē¦l-\noun (-es) Etymology:electr- + retin- (II) + -graph : an instrument for recording electrical activity in the retina • elec·tro·ret·i·no·graph·ic\-ˌret(ə)nə¦grafik\adjective • elec·tro·ret·i·nog·ra·phy\-(ə)nˈägrəfē\noun