Meaning of visual purple in English:

visual purple


mass noun
  • A purplish-red light-sensitive pigment present in the retinas of humans and many other animal groups.

    ‘In 1877, Boll and Kuhne independently published their classical studies on visual purple, the photoreceptor pigment of rods, and established that it was involved in the detection of light.’
    • ‘The photoreceptor of rod cells is specifically called rhodopsin or visual purple.’
    • ‘It is the reddish purple color of retinal that gives rhodopsin its former name visual purple.’
    • ‘And for vision it is also necessary that there should be visual purple behind the retina and an opaque cornea and iris.’
    • ‘Night vision is impaired when there is a lack of re synthesis of retinal necessary for forming visual purple.’