quadrifrons

1. Sculptured form, such as an Ancient Egyptian Hathor-headed capital, with four heads of the goddess joined at the sides and backs, facing outwards in four directions at the top of the shaft and under the abacus, or any other object with four outward-facing heads.

2. Tetrapylon, i.e. with four equal gates on four identical façades, perhaps a structure erected over the intersection of two avenues.