from The Century Dictionary.
- noun A quadruple arch marking, and covering, the intersection of two avenues in an old Roman city.
Sorry, no etymologies found.
It has a monumental entrance, a domed tetrapylon flanked by two large windows opening onto the atrium, and we found fragments of a polychrome mosaic once covering the floor of a room above it (see Domestic Area, August 7-18, 2005).
Where the Street of the Columns was crossed by another, coming from the west a tetrapylon marked the intersection; one superb marble column of it still remains in situ, 23 feet high, leaning against a fine wall of
About one-third of the way along the colonnaded street is the reconstructed tetrapylon, a large structure used to mark a junction of thoroughfares.
Beyond the tetrapylon the main street continues for another 500m, this stretch has seen much less excavation and reconstruction, and is littered with tumbled columns and assorted blocks of masonary.