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Definition of: retina
Our photo definition of retina 
(ret′ə·nə, ret′nə) noun plural ·nas or ·nae (-nē) Anat.
The inner membrane at the back of the eyeball, containing the light–sensitive rods and cones which receive the optical image. See illustration under EYE. [<LL <L rete net]
—ret′i·nal adjective
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