Choroid

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Choroid \Cho"roid\, a. [gr. ?; ? chorion + e'i^dos form.]
     (Anat.)
     resembling the chorion; as, the choroid plexuses of the
     ventricles of the brain, and the choroid coat of the eyeball.
     -- n. The choroid coat of the eye. See {Eye}.
     [1913 Webster]


  
     {Choroid plexus} (Anat.), one of the delicate fringelike
        processes, consisting almost entirely of blood vessels,
        which project into the ventricles of the brain.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  choroid
       n : a highly vascular membrane in the eye between the retina and
           the sclera [syn: {choroid coat}]