evacuate

v. (-ting) 1 a remove (people) from a place of danger. B empty (a place) in this way. 2 make empty. 3 (of troops) withdraw from (a place). 4 empty (the bowels etc.).  evacuation n. [latin vacuus empty]

v. t. To make empty; to empty out; to remove the contents of; as, to evacuate a vessel or dish.