retina vs retinal
retinal vs retinaretina and retinal both are nouns.
retina is not an adjective while retinal is an adjective.
| Word | Noun | Adjective | Verb | Adverb |
|---|---|---|---|---|
| retina | Yes | No | No | No |
| retinal | Yes | Yes | No | No |
| retina (noun) | retinal (noun) |
|---|---|
| the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve | either of two yellow to red retinal pigments formed from rhodopsin by the action of light |
| retina (adjective) | retinal (adjective) |
|---|---|
| in or relating to the retina of the eye |
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