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a depression or hollow.
glaucomatous cup a depression of the optic disk due to persistently increased intraocular pressure, broader and deeper than a physiologic cup, and occurring first at the temporal side of the disk.
physiologic cup excavation of optic disk.
a small oval receptacle used to apply a liquid to the external eye.
eye cup(ī kŭp)
A small oval receptacle used to apply a liquid to the external eye.