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retention basin

retention basin

5.2
A pond made by people that holds rainwater to prevent flooding and keep the water clean
  • noun
  • /rɪˈtɛnʃən ˈbeɪsən/
  • Specialized
translation icon : balsa de retención
  • The city built a new retention basin to reduce the risk of flooding during heavy rainstorms.

Examples

  • The compost site has a three percent slope with a retention basin for collecting runoff from the site.

    Academic text (1998)
  • The federation helped the school apply for grants to plant two large retention basins.

    Blog text (15)
  • At this site, however, stormwater is managed with bio-retention basins, swales, green roof systems, and pervious pavement.

    Blog text (4)
  • The system will use a network of 105 manhole-mounted sensors and computer-controlled valves to automatically hold back the flow of rainwater and sewage in pipes and retention basins until the storm has passed.

    Academic text (2008)
  • Engineers designed several retention basins to manage stormwater and protect local waterways from pollution.

  • During heavy rainfall, the retention basin fills up to safely capture excess water and prevent flooding in nearby neighborhoods.

Synonyms

impoundment
vsretention basin
1 7.3

A place where water is kept behind a dam for storage

is purpose built to hold stormwater permanently for flood control and water quality

Antonyms

43 3.5

Removing liquid so it flows away from a place or object

How Big

lake
793 1.0
reservoir
86 4.3
retention basin
  • Specialized
5.2
pond
266 1.0

Surface Forms

Morphology

retention + basin

The meaning is directly derivable from the constituents: a basin (place where water gathers) that provides retention (holding back) of water, i.e., a place designed to hold stormwater. This compositional compound follows regular English noun–noun/attribute patterns and has clear parallels in other languages, so a B1 learner who knows both words would readily infer the intended meaning.

Etymology

Retention basin comes from the simple picture of a bowl that keeps water: retention means to 'hold' and basin is a low bowl or pond. Builders dig a low area to keep rainwater after storms so it does not flood places, so today the term means a man-made pond that holds stormwater to prevent flooding and help clean the water.