Dictionary

rhodopsin

noun rho·dop·sin \rō-ˈdäp-sən\

Definition of RHODOPSIN

:  a red photosensitive pigment in the retinal rods of the eye of most vertebrates that is important in vision in dim light —called also visual purple
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Origin of RHODOPSIN

International Scientific Vocabulary rhod- + Greek opsis sight, vision + International Scientific Vocabulary 1-in — more at optic
First Known Use: 1886
Medical Dictionary

rhodopsin

noun rho·dop·sin \rō-ˈdäp-sən\

Medical Definition of RHODOPSIN

:  a red photosensitive pigment in the retinal rods of marine fishes and most higher vertebrates that is important in vision in dim light, is quickly bleached by light to a mixture of opsin and retinal, and is regenerated in the dark—called also visual purple

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