Armor on wheels (4)
I believe the answer is:
tank
(Other definitions for tank that I've seen before include "Water reservoir" , "Container for fish (or soldiers?)" , "Septic container" , "Vat" , "Aquarium; army vehicle" .)
I believe the answer is:
tank
(Other definitions for tank that I've seen before include "Water reservoir" , "Container for fish (or soldiers?)" , "Septic container" , "Vat" , "Aquarium; army vehicle" .)