| NOUN | substance | opsin | retinal protein formed by the action of light on rhodopsin |
|---|
| Meaning | retinal protein formed by the action of light on rhodopsin. | |
|---|---|---|
| Broader | protein | Any of a large group of nitrogenous organic compounds that are essential constituents of living cells |
| Substance of | iodopsin | A violet photopigment in the retinal cones of the eyes of most vertebrates |
| visual purple, rhodopsin, retinal purple | A red photopigment in the retinal rods of vertebrates | |
| Spanish | opsina | |
| Catalan | opsina | |
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