2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Retina  \Ret"i*na\,  n.  [NL.,  from  L.  rete  a  net.  Cf  {Reticule}.] 
  (Anat.) 
  The  delicate  membrane  by  which  the  back  part  of  the  globe  of 
  the  eye  is  lined,  and  in  which  the  fibers  of  the  optic  nerve 
  terminate.  See  {Eye}. 
 
  Note:  The  fibers  of  the  optic  nerve  and  the  retinal  blood 
  vessels  spread  out  upon  the  front  surface  of  the 
  retina,  while  the  sensory  layer  (called  Jacob's 
  membrane),  containing  the  rods  and  cones,  is  on  the 
  back  side  next  the  choroid  coat. 
 
  From  WordNet  r  1.6  [wn]: 
 
  retina 
  n  :  the  light-sensitive  membrane  covering  the  back  wall  of  the 
  eyeball;  it  is  continuous  with  the  optic  nerve 

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