retina has definitions from the fields of botany,anatomy,zoology,ophthalmology
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[ noun ] (botany,anatomy,zoology,ophthalmology) the light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve

Used in print

(Walter H. Buchsbaum, "Advances in Medical Electronics"...)

He can diagnose detachment of the retina where conventional methods indicate blindness due_to glaucoma .

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