Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
retina | Yes | No | No | No |
optic disk | Yes | No | No | No |
retina (noun) | optic disk (noun) |
---|---|
the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve | the point where the optic nerve enters the retina; not sensitive to light |