retina

 
Pronunciation: /ˈrɛtɪnə/

noun (plural retinas or retinae /-niː/)

  • a layer at the back of the eyeball that contains cells sensitive to light, which trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.

Derivatives

retinal

adjective

Origin:

late Middle English: from medieval Latin, from Latin rete 'net'