Found 1 items, similar to Optogram.
English → English (gcide)
Definition: Optogram
Optogram
\Op"to*gram\, n. [Optic + -gram: cf. F. optogramme.]
(Physiol.)
An image of external objects fixed on the retina by the
photochemical action of light on the visual purple. See
Optography.
[1913 Webster]