op·​to·​gram ˈäp-tə-ˌgram How to pronounce optogram (audio)
: an image of an external object fixed on the retina by the photochemical action of light on the rhodopsin

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Cite this Entry

“Optogram.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/optogram. Accessed 25 Jul. 2024.

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