dry well
noun/ˈdɹaɪˌwɛl/
Etymology From dry + well (in both open compound and solid compound form).
1
Business, Civil engineering, Construction, Engineering, Manufacturing, Natural sciences, Physical sciences An underground structure (for example, a pit filled with gravel) that disposes of unwanted water (most commonly surface runoff and stormwater and in some cases greywater) by holding it and dissipating it into the groundwater.
2
Used other than figuratively or idiomatically: see dry, well. Any kind of well that is dry.
- Related terms
- rain garden, sump