Contramure

In military fortification, a contramure, or countermure, is a wall raised behind another, to supply its place when breached or destroyed.^[1]

The term was also used to refer to an outer wall, built around the wall of a city.^[2]

References

1. This article incorporates text from this source, which is in the public domain. Porter, Noah, ed. (1913). Webster's Dictionary. Springfield, Massachusetts: C. & G. Merriam Co. {{cite encyclopedia}}: Missing or empty |title= (help)
2.  This article incorporates text from a publication now in the public domain: Chambers, Ephraim, ed. (1728). Cyclopædia, or an Universal Dictionary of Arts and Sciences (1st ed.). James and John Knapton, et al. {{cite encyclopedia}}: Missing or empty |title= (help)