| Noun | 1. | embankment - a long artificial mound of stone or earth; built to hold back water or to support a road or as protectionhill, mound - structure consisting of an artificial heap or bank usually of earth or stones; "they built small mounds to hide behind" bulwark, rampart, wall - an embankment built around a space for defensive purposes; "they stormed the ramparts of the city"; "they blew the trumpet and the walls came tumbling down" | |