drainage : Idioms & Phrases
drainage area
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noun the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
catchment basin; watershed; catchment area; basin; river basin; drainage area.
- flood control in the Missouri basin
WordNet
drainage basin
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noun the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
catchment basin; watershed; catchment area; basin; river basin; drainage area.
- flood control in the Missouri basin
WordNet
drainage ditch
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noun a ditch for carrying off excess water or sewage
WordNet
drainage system
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noun a system of watercourses or drains for carrying off excess water
WordNet
Drainage tube
(Surg.) , a tube introduced into a wound, etc., to draw off the discharges.
Webster 1913
water drainage
Wa"ter drain"age
Definitions
The draining off of water.