Cistern

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A waterproof, underground space used to collect rain water and store it. It is different from a well in that it is waterproof and used to collect rainwater, whereas a well is much deeper and draws groundwater.

Alternative Meanings:
  • Cistern

    A cistern is a covered or underground water reservoir waterproofed with hydraulic plaster to store rainwater. It is distinguished from wells because of its waterproof lining.

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