electroretinogram

noun
elec·tro·ret·i·no·gram | \i-ˌlek-trō-ˈre-tə-nə-ˌgram \

Definition of electroretinogram 

: a graphic record of electrical activity of the retina used especially in the diagnosis of retinal conditions

First Known Use of electroretinogram

1931, in the meaning defined above

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The first known use of electroretinogram was in 1931

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electroretinogram

noun
elec·tro·ret·i·no·gram | \-ˈret-ᵊn-ə-ˌgram \

Medical Definition of electroretinogram 

: a graphic record of electrical activity of the retina used especially in the diagnosis of retinal conditions

More from Merriam-Webster on electroretinogram

Britannica.com: Encyclopedia article about electroretinogram

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