A Cyzicene hall is the architectural term borrowed from the Latin (Oecus Cyzicenus) given by Vitruvius to the large hall, used by the Greeks, which faced the north, with a prospect towards the gardens; the windows of this hall opened down to the ground, so that the green verdure could be seen by those lying on the couches.
Possibly named for the city of Cyzicus.
References
Cyzicene hall Wikipedia(Text) CC BY-SA