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excavation of optic disk

excavation of optic disk in Medicine

excavation of optic disk n.
The normally occurring depression or pit in the center of the optic disk. Also called physiologic excavation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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