cup

cup (kup) a depression or hollow.

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glaucomatous cup  a form of optic disk depression peculiar to glaucoma.

optic cup 

1. a depression in the center of the optic disk.

2. an indentation of the distal wall of the optic vesicle, brought about by rapid marginal growth and producing a double-layered cup.

physiologic cup  optic c. (1)

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cup (kp)

n.

1. A cup-shaped structure or organ.

2. See cupping glass.

3. A unit of capacity or volume equal to 16 tablespoons or 8 fluid ounces.

v.

To subject a person or body part to the therapeutic procedure of cupping.

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cup

a depression or hollow.

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glaucomatous cup

a depression of the optic disk due to persistently increased intraocular pressure, broader and deeper than a physiological cup, and occurring first at the temporal side of the disk.

optic cup

an evagination of the optic vesicle, an outgrowth from the neural tube, which forms a cup, the forerunner of the eyeball.

physiological cup

a slight depression sometimes observed in the optic disk.

tooth cup

central depression on the occlusal surface of the horse's incisor teeth at the time of eruption; as the horse ages and the occlusal surface is eroded, the cup becomes smaller and eventually disappears; the reducing size is used in aging of horses by their teeth.