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excavation (eks-ka-va´shun)

1. A natural cavity, pouch, or recess.excavatio [NA]; 2. A cavity formed artificially or as the result of a pathologic process.
atrophic e. an exaggeration of the normal or physiologic cupping of the optic disk caused by atrophy of the optic nerve.
glaucomatous e. glaucomatous cup
e. of optic disc the normally occurring depression or pit in the center of the optic disc.excavatio disci [NA], depression of optic disk, excavatio papillae, physiologic cup, physiologic e;
physiologic e. e. of optic disc


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