| retinal | either of two yellow to red retinal pigments formed from Rhodopsin by the action of light |
|---|---|
| retinal | in or relating to the retina of the eye |
| retinal | visual receptor cell sensitive to color |
| retinal | visual impairment resulting from the retina becoming separated from the choroid in the back of the eye |
| retinal | a red photopigment in the retinal rods of vertebrates |
| retinal | visual receptor cell sensitive to dim light |