Circumvallation
Pronunciation : Cir`cum*val*la"tion, n. (Mil.) (a) The act of surrounding with a wall or rampart. (b) A line of field works made around a besieged place and the besieging army
Part of Speech : to
Definition :
protect the camp of the besiegers against the attack of an enemy from without.
Source : Webster's Unabridged Dictionary, 1913
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