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opsin: Meaning and Definition of

op•sin

Pronunciation: (op'sin), [key]
— n. Biochem.
  1. any of several compounds that form the protein component of the light-sensitive retina pigment, rhodopsin.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
-opsia -opsis
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