gyrate atrophy of choroid and retina

n.
  1. Progressive atrophy of the choriocapillary layer of the eye, the pigmentary epithelium, and the retina with associated ornithinuria.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.