Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia, Wikipedia.
(Biochemistry) another name for rhodopsin
a bright red photosensitive pigment found in the rod-shaped cells of the retina of certain fishes and most higher vertebrates: it is broken down by the action of dim light into retinal and opsin.
Switch to new thesaurus
|Noun||1.||visual purple - a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light|
opsin - retinal protein formed by the action of light on rhodopsin
retinal, retinene - either of two yellow to red retinal pigments formed from rhodopsin by the action of light
photopigment - a special pigment found in the rods and cones of the retina