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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
eparch
the leading Byzantine government official from the 6th to the 11th century, entrusted with the authority to maintain public order and safety in Constantinople (modern Istanbul), the Byzantine capital. Called the "father of the city," he ranked just beneath the emperor in importance.
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