Definitions
from The Century Dictionary.
- noun A persistent image formed on the retina by the bleaching of the visual purple. It may be made permanent by immediately immersing the retina in a solution of potash alum.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Physiol.) An image of external objects fixed on the retina by the photochemical action of light on the visual purple. See
optography .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physiology An
image ofexternal objects fixed on theretina by thephotochemical action oflight on thevisual purple .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Ancient Greek
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Examples
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whichbe commented on the word optogram
Image fixed on the retina. (from Phrontistery)
May 25, 2008