Definition of: tank

(tangk) noun
1. A large vessel, basin, or receptacle for holding a fluid.
2. Any natural pool or pond.
3. Mil. A heavily armored combat vehicle of the Caterpillar tractor type, propelled by internal–combustion engines and mounting guns of various calibers.
—v.t. To place or store in a tank. [<Pg. tanque, aphetic var. of estanque <L stagnum pool]
—tank′less adjective
—tank′like′ adjective