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iodopsin

[ahy-uh-dop-sin]
noun Biochemistry.
  1. a photosensitive violet pigment that occurs in the cones of the retina and is transformed by light into retinal and an opsin protein.
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Compare rhodopsin.

Origin of iodopsin

1935–40; < Greek īṓd(ēs) taken as derivative of íon violet (see iodine) + opsin, on the pattern of rhodopsin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for iodopsin

iodopsin

noun
  1. a violet light-sensitive pigment in the cones of the retina of the eye that is responsible for colour visionAlso called: visual violet See also rhodopsin
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

iodopsin in Medicine

iodopsin

(ī′ə-dŏpsĭn)
n.
  1. A violet, light-sensitive visual pigment found in the cones of the retina.visual violet
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.