OPSIN

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

Retinal protein formed by the action of light on rhodopsin

Classified under:

Nouns denoting substances

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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