tank definition

1. an enclosed armored military vehicle; has a cannon and moves on caterpillar treads
2. a large (usually metallic) vessel for holding gases or liquids
3. as much as a tank will hold
4. a freight car that transports liquids or gases in bulk
5. store in a tank by causing (something) to flow into it
6. consume excessive amounts of alcohol
7. treat in a tank
• examples: tank animal refuse