optogram

== English == === Etymology === From opto- +‎ -gram. === Noun === optogram (plural optograms) (physiology) An image of external objects fixed on the retina by the photochemical action of light on rhodopsi. ==== Related terms ==== optography ==== Translations ==== === References === “optogram”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. === Anagrams === topogram