Definition of visual purple in English:

visual purple

Syllabification: vis·u·al pur·ple

noun

  • another term for rhodopsin.
    More example sentences
    • 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.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody