| / English Dictionary |
OPSIN
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Retinal protein formed by the action of light on rhodopsin
Classified under:
Hypernyms ("opsin" is a kind of...):
protein (any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes)
Holonyms ("opsin" is a substance of...):
iodopsin (a violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision)
retinal purple; rhodopsin; visual purple (a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light)
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