contravallation noun.
[kɒntrǝvǝ'leɪʃ(ǝ)n] L17.[French contrevallation or Italian contravallazione, from Latin contra- CONTRA- + vallatio(n-), from late Latin vallare entrench, from vallum rampart: see WALL noun1, -ATION.]Hist. A chain of redoubts and breastworks constructed by besiegers for protection against sorties of the garrison.
[TahlilGaran] English Dictionary ▲