
[Greek propulon : pro-, before; see pro-2 + pulē, gate.]
In ancient Egyptian architecture, a monumental gateway, usually between two towers in outline like truncated pyramids, of which one or a series stood before the actual entrance or pylon of most temples or other important buildings.
In Greece, a dignified entrance between columns to a sanctuary, temple, agora, or a major building within an enclosure: an idea from Minoan architecture adapted by the Mycenaeans and retained in the classical period.