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

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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