cistern

• Nom désignant un réservoir ou un récipient destiné à stocker de l'eau, notamment celui qui alimente les toilettes ou sert à recueillir l'eau de pluie.

A noun referring to a tank or container for storing water, especially one that supplies water to a toilet or is used for rainwater collection.

1. Water storage tankB2formal

   A tank for storing water, especially one supplying water to a building or for rainwater collection.

   Citerne de stockage d'eau

   • The plumber checked the cistern in the attic for leaks.
   • Rainwater is collected in a large cistern under the garden.
   • The old house had a cistern that supplied water to the kitchen.

   Synonymesbuttreservoirstorage tanktankvatwater tank

2. Toilet tankB1formal

   The part of a toilet that holds water and releases it for flushing.

   Réservoir de chasse d'eau

   • The cistern behind the toilet is not filling properly.
   • He replaced the broken valve inside the toilet cistern.
   • The plumber fixed the leak in the cistern.