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1. A sac or cavity containing fluid especially lymph or cerebrospinal fluid
   - cisterna
    
2. A tank that holds the water used to flush a toilet
   - water tank
    
3. An artificial reservoir for storing liquids; especially an underground tank for storing rainwater

Derived forms: cisterns

Type of: pool, reservoir, sac, storage tank, tank

Encyclopedia: Cistern Cistern, Texas