Peristyle(redirected from Peristylium)
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a rectangular court, garden, hall, or similar space enclosed on all four sides by a roofed colonnade. Beginning in the fourth century B.C., the peristyle was an element of ancient Greek dwellings and public buildings (for example, the little courtyards of dwellings in the city of Olynthus). The peristyle was especially popular in Hellenistic Greece (some buildings had two peristyles) and in ancient Rome.