opsin

noun
op·sin | \ ˈäp-sən \

Definition of opsin 

: any of various colorless proteins that in combination with retinal or a related prosthetic group form a visual pigment (such as rhodopsin) in a reaction reversible by light

First Known Use of opsin

1951, in the meaning defined above

History and Etymology for opsin

probably from rhodopsin

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Dictionary Entries near opsin

OPS

-opsia

opsimath

opsin

-opsis

opsisform

opson-

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The first known use of opsin was in 1951

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More Definitions for opsin

opsin

noun
op·sin | \ ˈäp-sən \

Medical Definition of opsin 

: any of various colorless proteins that in combination with retinal or a related prosthetic group form a visual pigment (as rhodopsin) in a reaction which is reversed by light

More from Merriam-Webster on opsin

Britannica.com: Encyclopedia article about opsin

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