ˌkastrəmə̇ˈtāshən noun
( -s )
Etymology: French, from Medieval Latin castrametation-, castrametatio, from Latin castra metatus (past participle of castra metari to pitch a camp, from castra camp — plural of castrum fortified place — + metari to measure out) + -ion-, -io -ion; akin to Latin munire to fortify — more at castle , munition
: the making or laying out of a military camp