Haller's circle Hal·ler's circle (hāl'ərz, hä'lərz)
n.
A network of branches of the short ciliary arteries on the sclera around the point of entrance of the optic nerve.
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| the offspring of a zebra and a donkey. |
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