drainage network
nounUK /ˈdreɪnɪdʒ ˈnɛtwɜːk/
US /ˈdreɪnɪdʒ ˈnɛtwɝːk/
A drainage network is a group of connected pipes or channels that carry water away.
The city built a new drainage network to stop the streets from flooding.
OTHER MEANINGS
2. The pattern of streams and rivers that carry water off a piece of land.
The map shows the drainage network of the whole river valley.
3. A system of tubes used in medicine to remove fluid from a body part.
The surgeon checked the drainage network after the operation.
4. The arrangement of gutters and pipes that removes water from a building or field.
Heavy rain tested the farm's drainage network.