opsin

opsin definition - medical

op·sin (ŏpˈsĭn)

noun
A protein of the retina, especially the protein constituent of rhodopsin, that makes up one of the visual pigments.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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