English dictionary
optography
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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The production of an optogram on the retina by the photochemical action of light on the visual purple; the fixation of an image in the eye. The object so photographed shows white on a purple or red background. See <i>Visual purple</i>, under <u>Visual</u>.
Source: webster1913