pretorium

WORDNET DICTIONARY

pretorium(n = noun.artifact) praetorium - the tent of an ancient Roman general;

is a kind of collapsible shelter, tent

pretorium, n. [L. praetorium, fr. praetor.].

The general's tent in a Roman camp; hence, a council of war, because held in the general's tent. [1913 Webster]
The official residence of a governor of a province; hence, a place; a splendid country seat. [1913 Webster]

Also see definition of "pretorium" in Bible Study Dictionaries