n. (in anatomy) a line, furrow, or narrow band. See also primitive streak.
reddish to dark-brown irregular streaks radiating outwards from the optic disc underneath the retina. They represent irregular linear cracks in *Bruch’s membrane and can be the site for the development of new vessels from the choroid. They are seen in such systemic conditions as pseudoxanthoma elasticum, Paget’s disease, and sickle-cell anaemia.... angioid streaks
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