Definition of cistern
1 : an artificial reservoir (such as an underground tank) for storing liquids and especially water (such as rainwater)
2 : a large usually silver vessel formerly used (as in cooling wine) at the dining table
3 : a fluid-containing sac or cavity in an organism
Recent Examples of cistern from the Web
Consider adding rain barrels or cisterns to capture and store water for the dry times.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cistern'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
CISTERN Defined for English Language Learners
Definition of cistern for English Language Learners
: an underground container that is used for collecting and storing rainwater
: a tank that holds the water for a toilet
: a tank on the roof of a building that holds water for the building
CISTERN Defined for Kids
Definition of cistern for Students
: an artificial reservoir or tank for storing water usually underground
Medical Definition of cistern
: a fluid-containing sac or cavity in an organism
Seen and Heard
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