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Definition of Iodopsin
1. Noun. A violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision.
Definition of Iodopsin
1. a pigment in the retina [n -S]
Medical Definition of Iodopsin
1. A visual pigment, composed of 11-cis-retinal bound to an opsin, found in the cones of the retina. Synonym: visual violet. Origin: G. Ion, violet, + ops, eye, + -in (05 Mar 2000)