a photosensitive violet pigment that occurs in the cones of the retina and is transformed by light into retinal and an opsin protein.
Origin of iodopsin
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A violet, light-sensitive visual pigment found in the cones of the retina.visual violet
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.