visual purple


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visual purple

n.

visual purple

n
(Biochemistry) another name for rhodopsin

rho•dop•sin

(roʊˈdɒp sɪn)

n.
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.
[1885–90; rhod- + Greek óps(is) sight, vision + -in1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.visual purple - a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light
retinal rod, rod cell, rod - a visual receptor cell that is sensitive to dim 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
References in periodicals archive ?
Generally, rabbits and frogs are best as their eyes contain more rhodopsin or visual purple, which is the light sensitive protein in the retina.
The tobacco plant is another favourite and any white flowers look really nice at night, when different cells in the eye start to operate and the chemical, called visual purple, is released into our bodies.
One of the first signs of vitamin A deficiency is night blindness due to lack of visual purple - a pigment that lets us see in the dark.